<s>
Soldier	B-Application
of	I-Application
Fortune	I-Application
II	I-Application
:	I-Application
Double	I-Application
Helix	I-Application
is	O
a	O
first-person	O
shooter	O
video	O
game	O
developed	O
by	O
Raven	O
Software	O
,	O
the	O
sequel	O
to	O
Soldier	B-Application
of	I-Application
Fortune	I-Application
.	O
</s>
<s>
It	O
was	O
developed	O
using	O
the	O
id	B-Application
Tech	I-Application
3	I-Application
engine	O
as	O
opposed	O
to	O
the	O
original	O
's	O
id	B-Application
Tech	I-Application
2	I-Application
,	O
and	O
published	O
in	O
2002	O
.	O
</s>
<s>
Based	O
on	O
criticisms	O
of	O
the	O
original	O
game	O
,	O
Raven	O
Software	O
developed	O
Soldier	B-Application
of	I-Application
Fortune	I-Application
II	I-Application
to	O
be	O
a	O
more	O
"	O
realistic	O
"	O
game	O
,	O
with	O
more	O
modern	O
tactical	O
shooters	O
like	O
Operation	B-Application
Flashpoint	I-Application
:	I-Application
Cold	I-Application
War	I-Application
Crisis	I-Application
(	O
2001	O
)	O
and	O
Tom	B-Application
Clancy	I-Application
's	I-Application
Rainbow	I-Application
Six	I-Application
(	O
1998	O
)	O
serving	O
as	O
inspirations	O
,	O
rather	O
than	O
Quake	B-Application
(	O
1996	O
)	O
.	O
</s>
<s>
An	O
unrelated	O
sequel	O
titled	O
Soldier	B-Application
of	I-Application
Fortune	I-Application
:	I-Application
Payback	I-Application
,	O
made	O
by	O
Cauldron	O
HQ	O
,	O
was	O
released	O
for	O
Microsoft	B-Application
Windows	I-Application
,	O
PlayStation	B-Operating_System
3	I-Operating_System
and	O
Xbox	B-Operating_System
360	I-Operating_System
in	O
2007	O
.	O
</s>
<s>
The	O
theme	O
of	O
the	O
Double	O
Helix	O
is	O
germ	O
warfare	O
,	O
as	O
the	O
mercenary	B-Application
Mullins	O
and	O
his	O
new	O
partner	O
Madeline	O
Taylor	O
travel	O
to	O
Colombia	O
to	O
investigate	O
a	O
viral	O
outbreak	O
in	O
a	O
small	O
town	O
,	O
only	O
to	O
link	O
it	O
to	O
a	O
shadowy	O
organization	O
called	O
Prometheus	B-Language
.	O
</s>
<s>
The	O
virus	O
,	O
called	O
Romulus	B-Application
,	O
is	O
followed	O
by	O
a	O
computer	O
virus	O
called	O
Remus	O
which	O
is	O
programmed	O
to	O
delete	O
files	O
on	O
any	O
computer	O
in	O
the	O
world	O
,	O
in	O
this	O
case	O
,	O
files	O
relating	O
to	O
Prometheus	B-Language
and	O
Romulus	B-Application
,	O
so	O
an	O
anti-virus	B-Application
cannot	O
be	O
formulated	O
.	O
</s>
<s>
Prometheus	B-Language
then	O
plans	O
to	O
blackmail	O
the	O
G8	O
countries	O
at	O
a	O
summit	O
in	O
Switzerland	B-Protocol
for	O
billions	O
of	O
dollars	O
.	O
</s>
<s>
Soldier	B-Application
of	I-Application
Fortune	I-Application
II	I-Application
is	O
a	O
shooter	O
game	O
played	O
from	O
the	O
first-person	O
perspective	O
.	O
</s>
<s>
In	O
the	O
campaign	O
,	O
the	O
player	O
must	O
complete	O
a	O
series	O
of	O
levels	O
that	O
encompass	O
Soldier	O
of	O
Fortune	O
II'''s	O
storyline	O
,	O
reprising	O
their	O
role	O
as	O
special	O
operative	O
John	O
Mullins	O
from	O
the	O
first	B-Application
installment	I-Application
.	O
</s>
<s>
Its	O
campaign	O
can	O
be	O
experienced	O
through	O
four	O
levels	O
of	O
difficulty	O
:	O
Amateur	O
,	O
Gun	O
for	O
Hire	O
,	O
Consultant	O
,	O
and	O
Soldier	B-Application
of	I-Application
Fortune	I-Application
.	O
</s>
<s>
Following	O
the	O
gameplay	O
formula	O
of	O
its	O
predecessor	O
,	O
Soldier	B-Application
of	I-Application
Fortune	I-Application
II	I-Application
primarily	O
revolves	O
around	O
run	O
and	O
gun	O
tactics	O
,	O
but	O
also	O
includes	O
segments	O
focused	O
on	O
stealth	O
and	O
vehicular	O
combat	O
.	O
</s>
<s>
The	O
status	O
of	O
Mullins	O
 '	O
health	O
is	O
indicated	O
by	O
the	O
heads-up	B-Application
display	I-Application
(	O
HUD	B-Application
)	O
.	O
</s>
<s>
Gunfights	O
are	O
a	O
major	O
mechanic	O
of	O
Soldier	B-Application
of	I-Application
Fortune	I-Application
II	I-Application
.	O
</s>
<s>
This	O
gametype	O
is	O
very	O
similar	O
to	O
the	O
Bomb	O
Defusal	O
gametype	O
of	O
Valve	O
's	O
Counter-Strike	B-Application
series	O
.	O
</s>
<s>
The	O
PC	O
version	O
of	O
Soldier	B-Application
of	I-Application
Fortune	I-Application
II	I-Application
:	I-Application
Double	I-Application
Helix	I-Application
received	O
mostly	O
positive	O
reviews	O
,	O
however	O
,	O
Ivan	O
Zulic	O
of	O
IGN	O
remarked	O
that	O
the	O
game	O
felt	O
rushed	O
,	O
possibly	O
in	O
order	O
to	O
avoid	O
cannibalizing	O
sales	O
of	O
Star	B-Application
Wars	I-Application
Jedi	I-Application
Knight	I-Application
II	I-Application
:	I-Application
Jedi	I-Application
Outcast	I-Application
,	O
an	O
upcoming	O
title	O
from	O
the	O
same	O
company	O
.	O
</s>
<s>
The	O
Xbox	B-Application
version	O
was	O
heavily	O
criticized	O
since	O
it	O
did	O
not	O
improve	O
on	O
any	O
of	O
the	O
PC	O
version	O
's	O
flaws	O
despite	O
an	O
additional	O
year	O
of	O
development	O
time	O
,	O
so	O
it	O
did	O
not	O
keep	O
pace	O
with	O
the	O
advancements	O
in	O
competing	O
first-person	O
shooter	O
games	O
.	O
</s>
<s>
It	O
also	O
had	O
graphics	O
far	O
below	O
what	O
was	O
expected	O
for	O
the	O
Xbox	B-Application
,	O
with	O
bland	O
textures	O
and	O
a	O
low	O
polygon	O
count	O
that	O
led	O
Hector	O
Guzman	O
of	O
GameSpy	O
to	O
describe	O
it	O
as	O
a	O
"	O
PC	O
to	O
Dreamcast	B-Operating_System
to	O
Xbox	B-Application
port	O
"	O
.	O
</s>
<s>
Based	O
on	O
its	O
success	O
,	O
initially	O
released	O
for	O
Windows	O
,	O
Soldier	B-Application
of	I-Application
Fortune	I-Application
II	I-Application
:	I-Application
Double	I-Application
Helix	I-Application
was	O
later	O
ported	O
to	O
the	O
Xbox	B-Application
.	O
</s>
<s>
A	O
third	O
game	O
in	O
the	O
series	O
,	O
Soldier	B-Application
of	I-Application
Fortune	I-Application
:	I-Application
Payback	I-Application
,	O
was	O
made	O
by	O
Cauldron	O
HQ	O
and	O
released	O
in	O
2007	O
.	O
</s>
<s>
A	O
MMOFPS	B-Protocol
based	O
on	O
the	O
series	O
,	O
Soldier	O
of	O
Fortune	O
Online''	O
,	O
was	O
published	O
in	O
Korea	O
by	O
Dragonfly	O
and	O
went	O
in	O
closed	O
beta	O
on	O
August	O
12	O
,	O
2010	O
,	O
and	O
ended	O
on	O
August	O
16	O
,	O
2010	O
.	O
</s>
