<s>
Counter-Strike	B-Application
:	I-Application
Condition	I-Application
Zero	I-Application
is	O
a	O
first-person	O
shooter	O
video	O
game	O
developed	O
by	O
Ritual	O
Entertainment	O
,	O
Turtle	O
Rock	O
Studios	O
,	O
and	O
Valve	O
,	O
and	O
published	O
by	O
Sierra	O
Entertainment	O
and	O
Valve	O
.	O
</s>
<s>
The	O
follow-up	O
to	O
Counter-Strike	B-Application
(	O
2000	O
)	O
,	O
it	O
was	O
released	O
in	O
March	O
2004	O
for	O
Windows	B-Application
.	O
</s>
<s>
Condition	B-Application
Zero	I-Application
utilizes	O
the	O
GoldSrc	B-Application
engine	I-Application
and	O
has	O
a	O
multiplayer	O
mode	O
,	O
which	O
features	O
updated	O
character	O
models	O
,	O
textures	O
,	O
maps	O
and	O
other	O
graphical	O
tweaks	O
.	O
</s>
<s>
It	O
also	O
includes	O
two	O
single-player	O
campaigns	O
;	O
Tour	O
of	O
Duty	O
and	O
Condition	B-Application
Zero	I-Application
:	O
Deleted	O
Scenes	O
.	O
</s>
<s>
Alongside	O
various	O
other	O
Valve	O
titles	O
,	O
the	O
game	O
received	O
versions	O
for	O
OS	B-Operating_System
X	I-Operating_System
and	O
Linux	B-Application
in	O
2013	O
.	O
</s>
<s>
The	O
largest	O
difference	O
between	O
Counter-Strike	B-Application
and	O
Condition	B-Application
Zero	I-Application
is	O
that	O
all	O
maps	O
,	O
player	O
models	O
,	O
and	O
weapon	O
models	O
,	O
received	O
updates	O
to	O
their	O
graphics	O
,	O
enhancing	O
their	O
detail	O
and	O
modifying	O
them	O
slightly	O
.	O
</s>
<s>
The	O
primary	O
game	O
,	O
Condition	B-Application
Zero	I-Application
,	O
plays	O
largely	O
the	O
same	O
to	O
Counter-Strike	B-Application
,	O
but	O
with	O
the	O
inclusion	O
of	O
bots	O
,	O
and	O
a	O
"	O
Tour	O
of	O
Duty	O
"	O
campaign	O
across	O
multiplayer	O
maps	O
.	O
</s>
<s>
All	O
the	O
game	O
modes	O
in	O
Counter-Strike	B-Application
are	O
also	O
in	O
Condition	B-Application
Zero	I-Application
.	O
</s>
<s>
Deleted	O
Scenes	O
is	O
new	O
to	O
Counter-Strike	B-Application
in	O
that	O
it	O
provides	O
an	O
offline	O
,	O
non-arena-based	O
singleplayer	O
campaign	O
for	O
the	O
player	O
,	O
where	O
they	O
go	O
along	O
on	O
an	O
assortment	O
of	O
various	O
missions	O
all	O
around	O
the	O
world	O
,	O
engaging	O
in	O
firefights	O
with	O
various	O
enemies	O
as	O
a	O
"	O
Counter-terrorist	O
"	O
.	O
</s>
<s>
The	O
player	O
is	O
more	O
difficult	O
to	O
kill	O
in	O
this	O
game	O
mode	O
,	O
to	O
seemingly	O
make-up	O
for	O
the	O
fact	O
that	O
you	O
can	O
die	O
rather	O
quickly	O
in	O
regular	O
Counter-Strike	B-Application
.	O
</s>
<s>
Condition	B-Application
Zero	I-Application
started	O
development	O
in	O
2000	O
by	O
Rogue	O
Entertainment	O
,	O
and	O
was	O
initially	O
announced	O
in	O
May	O
2001	O
at	O
E3	O
of	O
that	O
year	O
.	O
</s>
<s>
Later	O
,	O
they	O
gave	O
it	O
to	O
Gearbox	O
Software	O
,	O
the	O
developers	O
of	O
the	O
Half-Life	B-Application
expansion	O
packs	O
,	O
so	O
that	O
Valve	O
could	O
focus	O
on	O
the	O
development	O
rival	O
Team	O
Fortress	O
2	O
and	O
its	B-Application
new	I-Application
engine	I-Application
.	O
</s>
<s>
Gearbox	O
created	O
an	O
overhaul	O
of	O
Counter-Strike	B-Application
with	O
high	O
quality	O
models	O
and	O
improved	O
graphics	O
.	O
</s>
<s>
They	O
also	O
added	O
alpha	O
blending	O
,	O
allowing	O
for	O
realistic	O
foliage	O
and	O
weather	O
effects	O
,	O
a	O
single-player	O
mode	O
to	O
the	O
game	O
,	O
similar	O
to	O
the	O
final	O
game	O
,	O
based	O
on	O
inspiration	O
of	O
Randy	O
Pitchford	O
from	O
console	O
games	O
such	O
as	O
Tony	B-Application
Hawk	I-Application
's	I-Application
Pro	I-Application
Skater	I-Application
and	O
Gran	B-Application
Turismo	I-Application
3	I-Application
:	I-Application
A-Spec	I-Application
,	O
and	O
they	O
included	O
explosive	O
weapons	O
such	O
as	O
a	O
Molotov	O
cocktails	O
,	O
tear	O
gas	O
bomb	O
,	O
M60	O
machine-gun	O
and	O
M72	O
LAW	O
rocket	O
.	O
</s>
<s>
They	O
also	O
used	O
the	O
release	O
of	O
Steam	B-Application
to	O
their	O
advantage	O
to	O
help	O
prevent	O
cheating	O
by	O
ensuring	O
constant	O
code	O
updates	O
.	O
</s>
<s>
It	O
was	O
expected	O
to	O
be	O
released	O
in	O
early	O
2003	O
with	O
a	O
secondary	O
multiplayer	O
mode	O
by	O
the	O
upstart	O
Turtle	O
Rock	O
Studios	O
,	O
and	O
released	O
alongside	O
the	O
Xbox	B-Application
version	O
of	O
Counter-Strike	B-Application
.	O
</s>
<s>
The	O
companies	O
retracted	O
the	O
gold	O
status	O
and	O
work	O
on	O
Condition	B-Application
Zero	I-Application
was	O
essentially	O
begun	O
again	O
.	O
</s>
<s>
They	O
implemented	O
a	O
new	O
bot	O
AI	B-Application
that	O
was	O
beta	O
tested	O
in	O
Counter-Strike	B-Application
1.6	I-Application
before	O
release	O
.	O
</s>
<s>
Condition	B-Application
Zero	I-Application
received	O
"	O
mixed	O
or	O
average	O
reviews	O
"	O
.	O
</s>
<s>
The	O
game	O
was	O
praised	O
for	O
its	O
AI	B-Application
and	O
new	O
maps	O
,	O
while	O
it	O
was	O
criticized	O
for	O
being	O
out-of-date	O
following	O
its	O
lengthy	O
development	O
.	O
</s>
<s>
Condition	B-Application
Zero	I-Application
has	O
been	O
featured	O
in	O
tournament	O
play	O
,	O
although	O
neither	O
Condition	B-Application
Zero	I-Application
nor	O
Counter-Strike	B-Application
:	I-Application
Source	I-Application
was	O
able	O
to	O
generate	O
mass	O
interest	O
from	O
players	O
of	O
the	O
original	O
Counter-Strike	B-Application
as	O
their	O
successor	O
Counter-Strike	B-Application
:	I-Application
Global	I-Application
Offensive	I-Application
did	O
.	O
</s>
