<s>
Tom	B-Application
Clancy	I-Application
's	I-Application
Rainbow	I-Application
Six	I-Application
:	I-Application
Critical	I-Application
Hour	I-Application
is	O
a	O
2006	O
tactical	O
first-person	O
shooter	O
video	O
game	O
developed	O
by	O
Ubisoft	O
Quebec	O
and	O
published	O
by	O
Ubisoft	O
exclusively	O
for	O
the	O
Xbox	B-Application
.	O
</s>
<s>
It	O
is	O
the	O
fifth	O
game	O
in	O
the	O
Rainbow	B-Application
Six	I-Application
series	O
.	O
</s>
<s>
Critical	O
Hour	O
primarily	O
consists	O
of	O
remastered	O
levels	O
from	O
Rainbow	B-Application
Six	I-Application
,	O
Rainbow	B-Device
Six	I-Device
:	I-Device
Rogue	I-Device
Spear	I-Device
,	O
and	O
Rogue	B-Device
Spear	I-Device
Mission	O
Pack	O
:	O
Urban	O
Operations	O
.	O
</s>
<s>
Fitting	O
with	O
the	O
game	O
's	O
theme	O
,	O
gameplay	O
is	O
reminiscent	O
of	O
these	O
titles	O
,	O
contrasting	O
with	O
the	O
gameplay	O
changes	O
introduced	O
in	O
Rainbow	B-Application
Six	I-Application
:	I-Application
Lockdown	I-Application
.	O
</s>
<s>
The	O
game	O
received	O
mixed	O
reception	O
due	O
to	O
its	O
small	O
amount	O
of	O
content	O
,	O
though	O
it	O
was	O
praised	O
for	O
following	O
the	O
roots	O
of	O
the	O
first	O
two	O
Rainbow	B-Application
Six	I-Application
games	O
.	O
</s>
<s>
Poor	O
sales	O
and	O
reception	O
led	O
to	O
the	O
cancellation	O
of	O
the	O
game	O
's	O
release	O
in	O
Europe	O
and	O
a	O
planned	O
PlayStation	B-Device
2	I-Device
port	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
Vegas	I-Application
,	O
was	O
released	O
in	O
November	O
2006	O
.	O
</s>
<s>
Critical	O
Hour	O
returns	O
to	O
the	O
more	O
realistic	O
tactical	O
formula	O
seen	O
in	O
previous	O
Rainbow	B-Application
Six	I-Application
games	O
.	O
</s>
<s>
The	O
game	O
returns	O
to	O
the	O
classic	O
gameplay	O
from	O
the	O
original	O
Rainbow	B-Application
Six	I-Application
and	O
Rogue	B-Device
Spear	I-Device
,	O
removing	O
the	O
"	O
run	O
and	O
gun	O
"	O
element	O
seen	O
in	O
Lockdown	O
.	O
</s>
<s>
The	O
game	O
modes	O
include	O
the	O
standard	O
Rainbow	B-Application
Six	I-Application
game	O
modes	O
,	O
an	O
assassin	O
mode	O
,	O
sharpshooter	O
,	O
and	O
last	O
man	O
standing	O
.	O
</s>
