<s>
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
4	I-Application
(	O
stylized	O
as	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
IIII	I-Application
)	O
is	O
a	O
2018	O
multiplayer	O
first-person	O
shooter	O
developed	O
by	O
Treyarch	O
and	O
published	O
by	O
Activision	O
.	O
</s>
<s>
It	O
was	O
released	O
worldwide	O
for	O
PlayStation	B-Operating_System
4	I-Operating_System
,	O
Windows	O
,	O
and	O
Xbox	B-Device
One	I-Device
on	O
October	O
12	O
,	O
2018	O
.	O
</s>
<s>
It	O
is	O
a	O
sequel	O
to	O
the	O
2015	O
game	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
III	I-Application
,	O
the	O
fifth	O
entry	O
in	O
the	O
Black	O
Ops	O
sub-series	O
,	O
and	O
the	O
15th	O
installment	O
in	O
the	O
Call	B-Application
of	I-Application
Duty	I-Application
series	O
overall	O
.	O
</s>
<s>
Black	B-Application
Ops	I-Application
4	I-Application
is	O
the	O
first	O
mainline	O
Call	B-Application
of	I-Application
Duty	I-Application
title	O
without	O
a	O
traditional	O
single-player	O
campaign	O
mode	O
.	O
</s>
<s>
Some	O
of	O
the	O
Specialists	O
also	O
carried	O
over	O
from	O
Black	B-Application
Ops	I-Application
III	I-Application
.	O
</s>
<s>
The	O
multiplayer	O
mode	O
is	O
the	O
first	O
in	O
the	O
series	O
to	O
not	O
feature	O
automatic	O
health	O
regeneration	O
and	O
introduces	O
both	O
predictive	O
recoil	O
and	O
a	O
new	O
ballistics	B-Application
system	O
.	O
</s>
<s>
Development	O
for	O
the	O
game	O
started	O
shortly	O
after	O
the	O
release	O
of	O
Black	B-Application
Ops	I-Application
III	I-Application
.	O
</s>
<s>
Black	B-Application
Ops	I-Application
4	I-Application
utilizes	O
Blizzard	O
's	O
Battle.net	B-Operating_System
platform	O
for	O
the	O
Windows	O
version	O
instead	O
of	O
Steam	B-Application
,	O
the	O
first	O
game	O
in	O
the	O
series	O
to	O
do	O
so	O
.	O
</s>
<s>
Pre-release	O
reception	O
of	O
the	O
game	O
was	O
negative	O
due	O
to	O
the	O
game	O
's	O
lack	O
of	O
a	O
campaign	O
mode	O
and	O
the	O
Black	O
Ops	O
Pass	O
,	O
a	O
season	O
pass	O
that	O
distributes	O
downloadable	B-Protocol
content	I-Protocol
(	O
DLC	B-Protocol
)	O
in	O
the	O
form	O
of	O
"	O
Operations	O
"	O
.	O
</s>
<s>
Black	B-Application
Ops	I-Application
4	I-Application
received	O
positive	O
reviews	O
upon	O
release	O
,	O
with	O
praise	O
towards	O
its	O
three	O
modes	O
,	O
particularly	O
Blackout	O
,	O
while	O
it	O
received	O
criticism	O
for	O
the	O
game	O
's	O
lack	O
of	O
a	O
campaign	O
mode	O
and	O
the	O
design	O
of	O
its	O
microtransactions	O
implemented	O
in	O
updates	O
.	O
</s>
<s>
Despite	O
physical	O
retail	O
sales	O
for	O
the	O
game	O
being	O
the	O
lowest	O
in	O
the	O
series	O
in	O
a	O
decade	O
,	O
it	O
was	O
the	O
best-selling	O
digital	O
launch	O
in	O
Activision	O
's	O
history	O
,	O
surpassing	O
2017	O
's	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
WWII	I-Application
.	O
</s>
<s>
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
4	I-Application
is	O
a	O
multiplayer	O
first-person	O
shooter	O
video	O
game	O
.	O
</s>
<s>
Unlike	O
previous	O
titles	O
in	O
the	O
Call	B-Application
of	I-Application
Duty	I-Application
series	O
,	O
Black	B-Application
Ops	I-Application
4	I-Application
is	O
the	O
first	O
entry	O
to	O
not	O
feature	O
a	O
traditional	O
single-player	O
campaign	O
,	O
and	O
contains	O
only	O
Multiplayer	O
,	O
Zombies	O
and	O
a	O
new	O
battle	O
royale	O
mode	O
called	O
Blackout	O
.	O
</s>
<s>
Black	B-Application
Ops	I-Application
4s	I-Application
multiplayer	O
features	O
the	O
return	O
of	O
Specialists	O
,	O
unique	O
soldier	O
characters	O
with	O
special	O
abilities	O
and	O
traits	O
.	O
</s>
<s>
At	O
launch	O
,	O
the	O
game	O
featured	O
a	O
total	O
of	O
ten	O
Specialists	O
,	O
six	O
of	O
which	O
(	O
Ruin	O
,	O
Prophet	O
,	O
Battery	O
,	O
Seraph	O
,	O
Nomad	O
,	O
Firebreak	O
)	O
are	O
returning	O
characters	O
from	O
Black	B-Application
Ops	I-Application
III	I-Application
,	O
while	O
the	O
other	O
four	O
(	O
Recon	O
,	O
Ajax	O
,	O
Torque	O
,	O
Crash	O
)	O
are	O
new	O
additions	O
.	O
</s>
<s>
Unlike	O
Black	B-Application
Ops	I-Application
III	I-Application
,	O
the	O
game	O
allows	O
only	O
two	O
unique	O
Specialist	O
per	O
team	O
,	O
in	O
order	O
to	O
emphasize	O
the	O
role	O
of	O
each	O
character	O
.	O
</s>
<s>
Automatic	O
health	O
regeneration	O
is	O
removed	O
in	O
favor	O
of	O
a	O
manual	O
healing	O
system	O
(	O
with	O
each	O
player	O
having	O
a	O
health	O
bar	O
)	O
,	O
weapons	O
are	O
now	O
given	O
predictive	O
recoil	O
patterns	O
,	O
and	O
a	O
mixed	O
ballistics	B-Application
system	O
,	O
using	O
both	O
hitscan	O
and	O
projectile	O
damage	O
,	O
is	O
employed	O
as	O
opposed	O
to	O
just	O
hitscan	O
.	O
</s>
<s>
The	O
missions	O
are	O
set	O
within	O
the	O
same	O
narrative	O
world	O
of	O
the	O
Black	O
Ops	O
campaigns	O
,	O
between	O
the	O
events	O
of	O
Black	O
Ops	O
II	O
and	O
Black	B-Application
Ops	I-Application
III	I-Application
.	O
</s>
<s>
Zombies	O
returns	O
as	O
the	O
cooperative	O
multiplayer	O
mode	O
for	O
Black	B-Application
Ops	I-Application
4	I-Application
.	O
</s>
<s>
Similar	O
to	O
the	O
Nazi	O
Zombies	O
mode	O
in	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
WWII	I-Application
,	O
custom	O
loadouts	O
are	O
included	O
to	O
allow	O
players	O
to	O
select	O
different	O
starting	O
weapons	O
,	O
equipment	O
and	O
special	O
upgradable	O
weapons	O
,	O
as	O
well	O
as	O
perk	O
selection	O
to	O
be	O
available	O
in	O
each	O
match	O
.	O
</s>
<s>
Black	B-Application
Ops	I-Application
4	I-Application
features	O
a	O
new	O
form	O
of	O
consumable	O
items	O
called	O
Elixirs	O
,	O
which	O
grant	O
temporary	O
buffs	O
to	O
the	O
players	O
upon	O
activation	O
;	O
and	O
Talismans	O
,	O
special	O
modifiers	O
that	O
are	O
applied	O
at	O
the	O
start	O
of	O
each	O
match	O
.	O
</s>
<s>
Black	B-Application
Ops	I-Application
4	I-Application
is	O
also	O
the	O
first	O
game	O
to	O
feature	O
two	O
distinctive	O
,	O
separate	O
storylines	O
for	O
Zombies	O
.	O
</s>
<s>
Black	B-Application
Ops	I-Application
4	I-Application
features	O
a	O
battle	O
royale	O
game	O
mode	O
called	O
Blackout	O
which	O
serves	O
as	O
a	O
stand-in	O
for	O
the	O
campaign	O
mode	O
.	O
</s>
<s>
While	O
utilizing	O
the	O
traditional	O
Black	O
Ops	O
combat	O
style	O
,	O
the	O
mode	O
includes	O
the	O
largest	O
map	O
featured	O
in	O
a	O
Call	B-Application
of	I-Application
Duty	I-Application
title	O
.	O
</s>
<s>
In	O
Blackout	O
,	O
up	O
to	O
100	O
players	O
,	O
who	O
can	O
choose	O
to	O
play	O
as	O
Solo	O
,	O
Duos	O
,	O
or	O
Quads	O
(	O
squads	O
of	O
4	O
)	O
,	O
drop	O
into	O
the	O
map	O
via	O
helicopters	B-Application
,	O
and	O
must	O
scavenge	O
for	O
loot	O
to	O
survive	O
as	O
the	O
last	O
person(s )	O
standing	O
,	O
while	O
a	O
circle	O
collapses	O
and	O
narrows	O
the	O
map	O
's	O
playable	O
area	O
.	O
</s>
<s>
AI-controlled	O
zombie	O
enemies	O
also	O
spawn	O
at	O
Zombies-themed	O
locations	O
,	O
such	O
as	O
Asylum	O
or	O
Lighthouse	O
,	O
and	O
upon	O
being	O
killed	O
drop	O
Zombies	O
loot	O
items	O
,	O
such	O
as	O
the	O
Ray	O
Gun	O
or	O
Cymbal	O
Monkey	O
.	O
</s>
<s>
Several	O
vehicles	O
,	O
such	O
as	O
the	O
ATV	O
and	O
helicopter	B-Application
,	O
are	O
also	O
available	O
for	O
traversal	O
around	O
the	O
map	O
.	O
</s>
<s>
Similar	O
to	O
Fortnite	B-Application
Battle	I-Application
Royale	I-Application
and	O
the	O
main	O
multiplayer	O
,	O
Blackout	O
features	O
special	O
modes	O
that	O
change	O
the	O
presence	O
or	O
mechanics	O
of	O
physical	O
items	O
in	O
the	O
Blackout	O
world	O
.	O
</s>
<s>
Other	O
characters	O
include	O
the	O
Oracle	O
of	O
Delphi	B-Language
(	O
Cissy	O
Jones	O
)	O
,	O
who	O
guides	O
Scarlett	O
's	O
crew	O
toward	O
their	O
goal	O
,	O
and	O
Perseus	O
(	O
Andrew	O
Morgado	O
)	O
,	O
the	O
demigod	O
son	O
of	O
Zeus	B-Application
who	O
became	O
a	O
zombie	O
warlord	O
after	O
failing	O
a	O
trial	O
.	O
</s>
<s>
The	O
Aether	O
story	O
of	O
Zombies	O
mode	O
continues	O
the	O
story	O
from	O
Black	B-Application
Ops	I-Application
III	I-Application
,	O
and	O
follows	O
the	O
Primis	O
crew	O
:	O
Edward	O
Richtofen	O
(	O
Nolan	O
North	O
)	O
,	O
"	O
Tank	O
"	O
Dempsey	O
(	O
Steve	O
Blum	O
)	O
,	O
Nikolai	O
Belinski	O
(	O
Fred	O
Tatasciore	O
)	O
,	O
and	O
Takeo	O
Masaki	O
(	O
Tom	O
Kane	O
)	O
,	O
as	O
they	O
try	O
to	O
continue	O
their	O
mission	O
of	O
securing	O
their	O
souls	O
from	O
fractured	O
dimensions	O
at	O
the	O
behest	O
of	O
Doctor	O
Monty	O
,	O
an	O
omnipotent	O
being	O
who	O
resides	O
in	O
the	O
Agartha	O
dimension	O
.	O
</s>
<s>
Other	O
characters	O
include	O
:	O
the	O
Shadowman	O
(	O
Robert	O
Picardo	O
)	O
,	O
leader	O
of	O
the	O
Apothicon	O
race	O
who	O
opposes	O
Monty	O
and	O
the	O
Order	O
of	O
the	O
Keepers	O
;	O
the	O
Warden	O
of	O
Alcatraz	O
Penitentiary	O
,	O
who	O
subjected	O
himself	O
to	O
becoming	O
the	O
Shadowman	O
's	O
servant	O
and	O
is	O
tasked	O
with	O
imprisoning	O
Primis	O
;	O
Doctor	O
Ludvig	O
Maxis	O
(	O
Fred	O
Tatasciore	O
)	O
,	O
an	O
ally	O
of	O
Primis	O
from	O
Dimension	O
63	O
who	O
attempts	O
to	O
contact	O
them	O
occasionally	O
from	O
Agartha	O
;	O
Samantha	O
Maxis	O
(	O
Julie	O
Nathanson	O
)	O
,	O
Ludvig	O
's	O
daughter	O
from	O
the	O
original	O
dimension	O
who	O
now	O
also	O
resides	O
in	O
Agartha	O
as	O
a	O
cleansed	O
soul	O
;	O
Eddie	O
,	O
the	O
cleansed	O
soul	O
of	O
Richtofen	O
from	O
Dimension	O
2210	O
who	O
now	O
resides	O
in	O
Agartha	O
in	O
the	O
form	O
of	O
a	O
child	O
;	O
Rushmore	O
(	O
John	O
de	O
Lancie	O
)	O
,	O
an	O
artificial	B-Application
intelligence	I-Application
operating	O
the	O
systems	O
of	O
Camp	O
Edward	O
,	O
a	O
Broken	O
Arrow	O
facility	O
;	O
Cornelius	O
Pernell	O
,	O
Broken	O
Arrow	O
's	O
Director	O
who	O
was	O
transformed	O
into	O
a	O
pure	O
electric	O
being	O
following	O
an	O
experiment	O
;	O
and	O
Pablo	O
Marinus	O
,	O
a	O
Mexican	O
test	O
subject	O
of	O
Group	O
935	O
who	O
lives	O
in	O
their	O
Siberian	O
outpost	O
as	O
a	O
hermit	O
.	O
</s>
<s>
Battery	O
is	O
revealed	O
to	O
have	O
been	O
seeing	O
flashes	O
of	O
numbers	O
,	O
an	O
effect	O
of	O
the	O
brainwashing	O
technique	O
that	O
Mason	B-Application
previously	I-Application
experienced	I-Application
during	I-Application
the	I-Application
Cold	I-Application
War	I-Application
,	O
further	O
hinting	O
that	O
the	O
event	O
of	O
the	O
mission	O
in	O
2043	O
may	O
not	O
have	O
been	O
real	O
.	O
</s>
<s>
Shaw	O
points	O
the	O
crew	O
toward	O
their	O
next	O
destination	O
,	O
Delphi	B-Language
,	O
Greece	O
in	O
order	O
to	O
find	O
answers	O
.	O
</s>
<s>
Scarlett	O
and	O
the	O
gang	O
are	O
guided	O
by	O
the	O
Oracle	O
of	O
Delphi	B-Language
to	O
an	O
ancient	O
cavern	O
where	O
the	O
gateway	O
is	O
located	O
.	O
</s>
<s>
The	O
crew	O
,	O
now	O
taking	O
on	O
the	O
form	O
of	O
gladiators	O
,	O
is	O
forced	O
to	O
fight	O
for	O
survival	O
,	O
as	O
they	O
complete	O
various	O
challenges	O
to	O
appease	O
the	O
four	O
Gods	O
:	O
Danu	O
,	O
Ra	O
,	O
Zeus	B-Application
and	O
Odin	B-Application
.	O
</s>
<s>
Snapping	O
out	O
of	O
the	O
hallucination	O
,	O
Scarlett	O
then	O
inputs	O
the	O
symbols	O
she	O
saw	O
on	O
the	O
portal	O
into	O
the	O
gateway	O
,	O
allowing	O
the	O
crew	O
to	O
enter	O
the	O
Ancient	O
City	O
of	O
Delphi	B-Language
.	O
</s>
<s>
The	O
trial	O
reaches	O
its	O
culmination	O
as	O
the	O
crew	O
battles	O
against	O
Perseus	O
and	O
his	O
winged	O
steed	O
Pegasus	B-Algorithm
,	O
and	O
triumphs	O
.	O
</s>
<s>
Diego	O
runs	O
back	O
in	O
horror	O
,	O
and	O
discovers	O
that	O
the	O
Oracle	O
was	O
Medusa	B-Application
in	O
disguise	O
.	O
</s>
<s>
Medusa	B-Application
renders	O
Scarlett	O
unconscious	O
after	O
acquiring	O
certain	O
knowledge	O
from	O
her	O
mind	O
.	O
</s>
<s>
Diego	O
manages	O
to	O
retrieve	O
Scarlett	O
and	O
hides	O
,	O
as	O
Medusa	B-Application
declares	O
her	O
eventual	O
ownership	O
of	O
the	O
Library	O
,	O
and	O
world	O
domination	O
.	O
</s>
<s>
The	O
four	O
battle	O
against	O
the	O
undead	O
across	O
the	O
Pentagon	O
,	O
as	O
well	O
as	O
the	O
Groom	B-Application
Lake	I-Application
facility	I-Application
of	I-Application
Area	I-Application
51	I-Application
.	O
</s>
<s>
They	O
activate	O
the	O
facility	O
's	O
artificial	B-Application
intelligence	I-Application
,	O
codenamed	O
Rushmore	O
,	O
who	O
agrees	O
to	O
give	O
them	O
the	O
shard	O
in	O
exchange	O
for	O
them	O
proving	O
their	O
worthiness	O
.	O
</s>
<s>
According	O
to	O
a	O
report	O
from	O
Kotaku	O
editor	O
Jason	O
Schreier	O
,	O
Treyarch	O
originally	O
planned	O
for	O
Black	B-Application
Ops	I-Application
4	I-Application
to	O
have	O
a	O
campaign	O
,	O
titled	O
"	O
Career	O
"	O
,	O
continuing	O
from	O
the	O
story	O
of	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
III	I-Application
.	O
</s>
<s>
It	O
would	O
have	O
been	O
set	O
in	O
a	O
2070s	O
post-apocalyptic	O
world	O
where	O
four	O
players	O
could	O
progress	O
through	O
the	O
story	O
,	O
split	O
into	O
teams	O
of	O
two	O
(	O
with	O
an	O
option	O
for	O
solo	O
players	O
to	O
play	O
with	O
AI	B-Application
bots	O
)	O
.	O
</s>
<s>
Gameplay	O
would	O
include	O
PVP	O
and	O
PVE	O
sections	O
,	O
abilities	O
similar	O
to	O
those	O
from	O
Black	B-Application
Ops	I-Application
3	I-Application
,	O
side-objectives	O
,	O
and	O
companion	O
characters	O
based	O
on	O
the	O
same	O
game	O
's	O
multiplayer	O
specialists	O
.	O
</s>
<s>
According	O
to	O
a	O
report	O
from	O
Insider	O
Gaming	O
,	O
Treyarch	O
intended	O
for	O
the	O
multiplayer	O
in	O
Black	B-Application
Ops	I-Application
4	I-Application
to	O
be	O
similar	O
to	O
hero	O
shooters	O
such	O
as	O
Overwatch	B-Application
.	O
</s>
<s>
Due	O
to	O
negative	O
feedback	O
from	O
playtesters	O
in	O
early	O
2018	O
,	O
the	O
Multiplayer	O
was	O
reworked	O
to	O
be	O
more	O
familiar	O
to	O
resonate	O
with	O
the	O
Call	B-Application
of	I-Application
Duty	I-Application
community	O
.	O
</s>
<s>
War	O
mode	O
,	O
from	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
WWII	I-Application
,	O
was	O
also	O
planned	O
for	O
the	O
game	O
but	O
ultimately	O
scrapped	O
.	O
</s>
<s>
On	O
February	O
6	O
,	O
2018	O
,	O
Eurogamer	O
indicated	O
that	O
Treyarch	O
's	O
2018	O
Call	B-Application
of	I-Application
Duty	I-Application
title	O
would	O
be	O
a	O
new	O
entry	O
in	O
the	O
Black	O
Ops	O
sub-series	O
,	O
following	O
2015	O
's	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
III	I-Application
.	O
</s>
<s>
On	O
March	O
5	O
,	O
Call	B-Application
of	I-Application
Duty	I-Application
news	O
site	O
Charlie	O
Intel	O
received	O
images	O
of	O
gaming	O
retailer	O
GameStop	O
's	O
internal	O
database	O
that	O
showed	O
listings	O
for	O
items	O
that	O
were	O
meant	O
to	O
market	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
4	I-Application
.	O
</s>
<s>
Harden	O
later	O
confirmed	O
that	O
this	O
was	O
indeed	O
advertising	O
for	O
Black	B-Application
Ops	I-Application
4	I-Application
.	O
</s>
<s>
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
4	I-Application
was	O
released	O
on	O
October	O
12	O
,	O
2018	O
,	O
on	O
PlayStation	B-Operating_System
4	I-Operating_System
,	O
Windows	O
,	O
and	O
Xbox	B-Device
One	I-Device
.	O
</s>
<s>
It	O
is	O
the	O
first	O
Call	B-Application
of	I-Application
Duty	I-Application
title	O
to	O
be	O
released	O
in	O
October	O
since	O
Call	B-Application
of	I-Application
Duty	I-Application
2	I-Application
;	O
titles	O
since	O
then	O
have	O
all	O
been	O
released	O
in	O
November	O
.	O
</s>
<s>
The	O
release	O
of	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
4	I-Application
a	O
month	O
earlier	O
was	O
thought	O
to	O
be	O
due	O
to	O
Rockstar	O
Games	O
's	O
much	O
anticipated	O
release	O
of	O
Red	B-Application
Dead	I-Application
Redemption	I-Application
2	I-Application
on	O
October	O
26	O
.	O
</s>
<s>
On	O
July	O
11	O
,	O
2018	O
,	O
Activision	O
and	O
Treyarch	O
announced	O
the	O
dates	O
for	O
the	O
multiplayer	O
beta	O
:	O
PlayStation	B-Operating_System
4	I-Operating_System
players	O
had	O
an	O
exclusive	O
first	O
beta	O
weekend	O
from	O
August	O
3	O
to	O
6	O
,	O
while	O
a	O
second	O
weekend	O
from	O
August	O
10	O
to	O
13	O
was	O
offered	O
to	O
all	O
platforms	O
.	O
</s>
<s>
Activision	O
also	O
announced	O
a	O
beta	O
for	O
the	O
Blackout	O
mode	O
,	O
which	O
took	O
place	O
from	O
September	O
10	O
for	O
PlayStation	B-Operating_System
4	I-Operating_System
,	O
September	O
14	O
for	O
Xbox	B-Device
One	I-Device
and	O
Windows	O
,	O
and	O
ending	O
September	O
17	O
for	O
all	O
platforms	O
.	O
</s>
<s>
The	O
Windows	O
version	O
exclusively	O
uses	O
Blizzard	O
Entertainment	O
's	O
Battle.net	B-Operating_System
platform	O
,	O
and	O
will	O
not	O
use	O
or	O
be	O
available	O
on	O
Steam	B-Application
for	O
the	O
first	O
time	O
since	O
2005	O
's	O
Call	B-Application
of	I-Application
Duty	I-Application
2	I-Application
(	O
which	O
got	O
a	O
Steam	B-Application
release	O
later	O
)	O
.	O
</s>
<s>
On	O
June	O
11	O
,	O
2018	O
,	O
Activision	O
and	O
Treyarch	O
announced	O
three	O
special	O
editions	O
available	O
for	O
Black	B-Application
Ops	I-Application
4	I-Application
:	O
the	O
Digital	O
Deluxe	O
,	O
the	O
Digital	O
Deluxe	O
Enhanced	O
,	O
and	O
the	O
Pro	O
Edition	O
.	O
</s>
<s>
Rather	O
than	O
distributing	O
new	O
maps	O
via	O
map	O
packs	O
like	O
previous	O
Call	B-Application
of	I-Application
Duty	I-Application
titles	O
,	O
the	O
Black	O
Ops	O
Pass	O
will	O
deliver	O
new	O
content	O
on	O
a	O
more	O
frequent	O
basis	O
throughout	O
the	O
year	O
.	O
</s>
<s>
Players	O
who	O
pre-order	O
any	O
digital	O
editions	O
of	O
the	O
game	O
on	O
PlayStation	B-Operating_System
4	I-Operating_System
also	O
receive	O
the	O
"	O
Back	O
in	O
Black	O
"	O
map	O
pack	O
for	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
III	I-Application
.	O
</s>
<s>
The	O
pack	O
contains	O
four	O
remastered	O
multiplayer	O
maps	O
:	O
Jungle	O
,	O
Summit	O
,	O
Slums	O
,	O
and	O
Firing	O
Range	O
(	O
all	O
of	O
which	O
are	O
included	O
in	O
Black	B-Application
Ops	I-Application
4	I-Application
at	O
launch	O
)	O
.	O
</s>
<s>
On	O
September	O
20	O
,	O
2018	O
,	O
Activision	O
and	O
Sony	O
revealed	O
their	O
partnership	O
for	O
Black	B-Application
Ops	I-Application
4	I-Application
,	O
which	O
allows	O
the	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
version	O
of	O
the	O
game	O
to	O
receive	O
all	O
content	O
updates	O
,	O
including	O
free	O
and	O
paid	O
content	O
,	O
seven	O
days	O
before	O
other	O
platforms	O
,	O
as	O
opposed	O
to	O
the	O
30-day	O
gap	O
that	O
was	O
present	O
in	O
previous	O
Call	B-Application
of	I-Application
Duty	I-Application
titles	O
.	O
</s>
<s>
As	O
opposed	O
to	O
the	O
traditional	O
downloadable	B-Protocol
content	I-Protocol
model	O
of	O
four	O
map	O
packs	O
,	O
Black	B-Application
Ops	I-Application
4	I-Application
receives	O
frequent	O
updates	O
in	O
the	O
form	O
of	O
"	O
Operations	O
"	O
,	O
which	O
are	O
themed	O
events	O
across	O
all	O
game	O
modes	O
,	O
featuring	O
a	O
variety	O
of	O
free	O
and	O
paid	O
limited-time	O
content	O
for	O
the	O
game	O
,	O
as	O
well	O
as	O
the	O
Black	O
Ops	O
Pass	O
content	O
.	O
</s>
<s>
On	O
June	O
20	O
,	O
2018	O
,	O
Dark	O
Horse	O
Comics	O
revealed	O
that	O
they	O
would	O
be	O
publishing	O
the	O
second	O
season	O
of	O
the	O
Call	B-Application
of	I-Application
Duty	I-Application
:	O
Zombies	O
comic	O
book	O
series	O
,	O
which	O
was	O
first	O
launched	O
in	O
October	O
2016	O
.	O
</s>
<s>
On	O
September	O
26	O
,	O
2018	O
,	O
Activision	O
announced	O
a	O
new	O
10-issue	O
comic	O
series	O
featuring	O
the	O
Multiplayer	O
Specialist	O
characters	O
,	O
released	O
for	O
free	O
on	O
the	O
official	O
Call	B-Application
of	I-Application
Duty	I-Application
website	O
.	O
</s>
<s>
Upon	O
rumors	O
emerging	O
that	O
Black	B-Application
Ops	I-Application
4	I-Application
would	O
not	O
have	O
a	O
single-player	O
campaign	O
mode	O
,	O
reactions	O
from	O
the	O
Call	B-Application
of	I-Application
Duty	I-Application
community	O
were	O
negative	O
.	O
</s>
<s>
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
4	I-Application
received	O
"	O
generally	O
favorable	O
"	O
reviews	O
across	O
all	O
platforms	O
according	O
to	O
review	O
aggregator	O
Metacritic	O
.	O
</s>
<s>
In	O
its	O
9.5/10	O
review	O
,	O
Game	O
Informer	O
wrote	O
:	O
"	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
4	I-Application
makes	O
a	O
sacrifice	O
that	O
's	O
sure	O
to	O
be	O
off-putting	O
to	O
some	O
with	O
the	O
lack	O
of	O
a	O
campaign	O
,	O
but	O
the	O
surrender	O
of	O
tradition	O
comes	O
with	O
sweeping	O
and	O
significant	O
benefits	O
.	O
</s>
<s>
Electronic	O
Gaming	O
Monthly	O
gave	O
the	O
game	O
8.5/10	O
,	O
writing	O
:	O
"	O
Call	B-Application
of	I-Application
Duty	I-Application
:	I-Application
Black	I-Application
Ops	I-Application
4	I-Application
has	O
made	O
some	O
bold	O
changes	O
to	O
the	O
series	O
,	O
and	O
ultimately	O
,	O
they	O
're	O
for	O
the	O
better	O
.	O
</s>
<s>
Changes	O
are	O
always	O
risky	O
,	O
but	O
in	O
Black	B-Application
Ops	I-Application
4s	I-Application
case	O
,	O
it	O
worked	O
out	O
for	O
the	O
better.	O
"	O
</s>
<s>
IGN	O
wrote	O
that	O
"	O
Black	B-Application
Ops	I-Application
4	I-Application
has	O
a	O
few	O
rough	O
edges	O
,	O
but	O
any	O
of	O
its	O
three	O
modes	O
make	O
for	O
an	O
enjoyable	O
shooter	O
experience	O
that	O
feel	O
distinct	O
and	O
personalized.	O
"	O
</s>
<s>
In	O
June	O
2018	O
,	O
following	O
the	O
reveal	O
of	O
the	O
game	O
's	O
season	O
pass	O
,	O
Activision	O
and	O
Treyarch	O
received	O
heavy	O
backlash	O
from	O
the	O
community	O
for	O
the	O
downloadable	B-Protocol
content	I-Protocol
program	O
as	O
it	O
was	O
confirmed	O
that	O
map	O
packs	O
could	O
not	O
be	O
bought	O
separately	O
from	O
the	O
pass	O
.	O
</s>
<s>
Players	O
and	O
critics	O
compared	O
the	O
release	O
model	O
unfavorably	O
to	O
other	O
companies	O
 '	O
approach	O
toward	O
free	O
content	O
,	O
such	O
as	O
Electronic	O
Arts	O
with	O
Battlefield	B-Application
V	I-Application
,	O
criticizing	O
Activision	O
for	O
focusing	O
on	O
the	O
monetization	O
of	O
downloadable	B-Protocol
content	I-Protocol
and	O
microtransactions	O
,	O
and	O
splitting	O
the	O
game	O
's	O
community	O
.	O
</s>
<s>
Several	O
weeks	O
after	O
Black	B-Application
Ops	I-Application
4	I-Application
release	O
,	O
a	O
microtransaction	O
system	O
allowing	O
for	O
the	O
purchase	O
of	O
cosmetic	O
items	O
which	O
provided	O
no	O
gameplay	O
advantages	O
was	O
incorporated	O
into	O
the	O
game	O
,	O
drawing	O
criticism	O
for	O
being	O
overpriced	O
while	O
offering	O
few	O
benefits	O
in	O
return	O
.	O
</s>
<s>
He	O
criticized	O
that	O
progression	O
in	O
the	O
game	O
's	O
Black	O
Market	O
Contraband	O
,	O
allowing	O
the	O
player	O
to	O
advance	O
through	O
tiers	O
and	O
unlock	O
items	O
,	O
was	O
"	O
far	O
too	O
slow	O
"	O
and	O
encouraged	O
real-world	O
money	O
to	O
speed	O
up	O
progress	O
;	O
Special	O
Orders	O
(	O
cosmetic	O
item	O
bundles	O
)	O
not	O
only	O
required	O
real	O
money	O
,	O
but	O
also	O
subsequent	O
hours	O
of	O
grinding	B-Application
to	O
unlock	O
said	O
items	O
;	O
and	O
that	O
the	O
Black	O
Market	O
shop	O
's	O
biggest	O
drawback	O
was	O
that	O
the	O
cosmetic	O
skins	O
were	O
"	O
hot	O
,	O
steaming	O
garbage	O
"	O
.	O
</s>
<s>
Wesley	O
Yin-Poole	O
of	O
Eurogamer	O
also	O
felt	O
that	O
the	O
game	O
presented	O
a	O
"	O
soul-destroying	O
"	O
grind	B-Application
for	O
players	O
looking	O
to	O
unlock	O
desired	O
items	O
through	O
hours	O
of	O
playtime	O
,	O
inciting	O
them	O
to	O
pay	O
for	O
microtransactions	O
instead	O
and	O
unlock	O
the	O
content	O
sooner	O
.	O
</s>
<s>
Kain	O
echoed	O
these	O
complaints	O
,	O
further	O
criticizing	O
the	O
cost	O
of	O
loot	O
boxes	O
and	O
only	O
being	O
available	O
by	O
paying	O
real-world	O
funds	O
,	O
saying	O
"	O
There	O
are	O
so	O
many	O
ways	O
you	O
can	O
spend	O
your	O
money	O
in	O
Black	B-Application
Ops	I-Application
4	I-Application
at	O
this	O
point	O
,	O
it	O
's	O
just	O
ridiculous.	O
"	O
</s>
<s>
Black	B-Application
Ops	I-Application
4	I-Application
grossed	O
over	O
$500	O
million	O
in	O
worldwide	O
retail	O
sales	O
within	O
its	O
first	O
three	O
days	O
of	O
release	O
.	O
</s>
<s>
The	O
game	O
was	O
the	O
second	O
best	O
selling	O
title	O
in	O
US	O
in	O
November	O
2018	O
behind	O
Red	B-Application
Dead	I-Application
Redemption	I-Application
2	I-Application
.	O
</s>
