<s>
Tom	B-Application
Clancy	I-Application
's	I-Application
Rainbow	I-Application
Six	I-Application
:	I-Application
Lockdown	I-Application
is	O
a	O
2005	O
tactical	O
first-person	O
shooter	O
video	O
game	O
developed	O
by	O
Red	O
Storm	O
Entertainment	O
and	O
published	O
by	O
Ubisoft	O
for	O
the	O
PlayStation	B-Device
2	I-Device
,	O
Xbox	B-Application
,	O
GameCube	B-Application
,	O
and	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
It	O
is	O
the	O
fourth	O
game	O
in	O
the	O
Rainbow	B-Application
Six	I-Application
series	O
.	O
</s>
<s>
The	O
initial	O
design	O
and	O
PlayStation	B-Device
2	I-Device
version	O
were	O
developed	O
by	O
Red	O
Storm	O
Entertainment	O
and	O
the	O
Xbox	B-Application
version	O
was	O
developed	O
by	O
Ubisoft	O
Montreal	O
.	O
</s>
<s>
The	O
game	O
received	O
average	O
reviews	O
mostly	O
due	O
to	O
its	O
departure	O
from	O
traditional	O
Rainbow	B-Application
Six	I-Application
gameplay	O
.	O
</s>
<s>
A	O
sequel	O
,	O
Tom	B-Application
Clancy	I-Application
's	I-Application
Rainbow	I-Application
Six	I-Application
:	I-Application
Critical	I-Application
Hour	I-Application
,	O
was	O
released	O
on	O
March	O
17	O
,	O
2006	O
.	O
</s>
<s>
The	O
console	O
versions	O
of	O
Lockdown	O
features	O
several	O
"	O
shooting	O
gallery	O
"	O
-style	O
sniper	B-Protocol
missions	O
,	O
in	O
which	O
players	O
take	O
control	O
of	O
Rainbow	O
sniper	B-Protocol
Dieter	O
Weber	O
,	O
and	O
snipe	O
terrorists	O
from	O
a	O
position	O
such	O
as	O
a	O
small	O
room	O
or	O
a	O
helicopter	O
while	O
covering	O
the	O
entry	O
of	O
an	O
AI-controlled	O
squad	O
into	O
an	O
area	O
.	O
</s>
<s>
The	O
PC	O
version	O
of	O
Lockdown	O
removed	O
the	O
sniper	B-Protocol
segments	O
and	O
storyline-related	O
cutscenes	O
,	O
and	O
also	O
included	O
redesigned	O
levels	O
to	O
match	O
the	O
less	O
linear	O
gameplay	O
of	O
previous	O
entries	O
in	O
the	O
series	O
.	O
</s>
<s>
The	O
Xbox	B-Application
version	O
of	O
Lockdown	O
features	O
an	O
exclusive	O
gameplay	O
mode	O
for	O
Microsoft	O
's	O
Xbox	B-Application
Live	I-Application
service	O
called	O
"	O
Persistent	O
Elite	O
Creation	O
"	O
(	O
PEC	O
)	O
.	O
</s>
<s>
There	O
are	O
four	O
"	O
careers	O
"	O
to	O
choose	O
from	O
:	O
Commando	B-Application
,	O
Medic	O
,	O
Engineer	O
,	O
and	O
Spec-Op	O
.	O
</s>
<s>
Each	O
class	O
features	O
different	O
abilities	O
and	O
strengths	O
:	O
Commandos	B-Application
are	O
able	O
to	O
use	O
heavy	O
weaponry	O
and	O
armor	O
,	O
Medics	O
can	O
use	O
items	O
to	O
heal	O
teammates	O
during	O
battle	O
,	O
Engineers	O
can	O
set	O
up	O
gun	O
turrets	O
,	O
and	O
Spec-Ops	O
are	O
stealthy	O
and	O
can	O
use	O
surveillance	O
equipment	O
.	O
</s>
<s>
The	O
PlayStation	B-Device
2	I-Device
version	O
,	O
while	O
lacking	O
the	O
Xbox	B-Application
version	O
's	O
PEC	O
mode	O
,	O
has	O
its	O
own	O
online	O
mode	O
.	O
</s>
<s>
The	O
Nintendo	B-Application
GameCube	I-Application
version	O
of	O
the	O
game	O
does	O
not	O
take	O
advantage	O
of	O
the	O
system	O
's	O
optional	O
broadband	O
or	O
modem	O
adapters	O
,	O
meaning	O
there	O
is	O
no	O
online	O
mode	O
.	O
</s>
<s>
However	O
,	O
the	O
GameCube	B-Application
version	O
does	O
include	O
an	O
exclusive	O
two-player	O
co-op	O
mode	O
.	O
</s>
<s>
Alpha	O
,	O
assisted	O
by	O
Rainbow	O
sniper	B-Protocol
Dieter	O
Weber	O
,	O
is	O
able	O
to	O
board	O
the	O
ferry	O
and	O
defeat	O
them	O
without	O
incident	O
.	O
</s>
<s>
GLF	O
informant	O
Nicolai	O
Yazhov	O
,	O
a	O
KGB	B-Application
rival	O
from	O
Chavez	O
's	O
CIA	O
career	O
,	O
offers	O
to	O
meet	O
with	O
Rainbow	O
in	O
Marseille	O
,	O
but	O
the	O
meeting	O
is	O
an	O
ambush	O
and	O
Yazhov	O
flees	O
;	O
Chavez	O
pursues	O
and	O
captures	O
Yazhov	O
,	O
and	O
Alpha	O
saves	O
him	O
from	O
GLF	O
hit	O
squads	O
.	O
</s>
<s>
The	O
change	O
in	O
gameplay	O
from	O
previous	O
versions	O
of	O
Rainbow	B-Application
Six	I-Application
was	O
considered	O
a	O
controversial	O
move	O
,	O
and	O
the	O
PC	O
version	O
received	O
significantly	O
lower	O
scores	O
than	O
its	O
predecessors	O
.	O
</s>
