ArmA II (or Armed Assault 2) is the sequel to ArmA: Combat Operations and the spiritual successor to Operation Flashpoint. The game will revolve around a war in the fictional ex-Soviet republic of Chenarus, which is being fought over by the government, communist rebels, the United States and the Russian Federation. The current list of weapons represents what has been shown in previews so far (with an eventual 81 weapon variants)
Pistols
Colt M1911
M1911 to M1911A1 comparison pictures.
Makarov PM
Beretta M9
Sub-Machine guns
Heckler & Koch MP5SD6
Bizon
Assault Rifles
AKM
AKM, Stamped Steel Receiver w/ slant muzzle brake 7.62x39mm
AKMS
AK-74
AK-74 with GP-30 grenade launcher- 5.45x39mm
AKS-74
AKS-74U
AKS-74U (also referred to as the "AKSU" or 'Krinkov') - 5.45x39mm
AKS-74UN with a Kobra sight- 5.45x39mm
AK-107
AK-107 with a Kobra sight- 5.45x39mm
M16A2
M16A4
M-16A4 with a M203 grenade launcher, ACOG TA31 sight and AN/PEQ2 laser module- 5.56x45mm
M4A1
M4A1 carbine with a M68 Aimpoint sight- 5.56x45mm
Heckler & Koch G36
Heckler & Koch G36K- 5.56x45mm
Heckler & Koch G36C with suppressor and a EOTech sight- 5.56x45mm
Heckler & Koch XM8
Heckler & Koch XM8 carbine with M320 grenade launcher- 5.56x45mm.
Heckler & Koch XM8 Compact- 5.56x45mm.
Sniper Rifles
M14 DMR
M24
Mk 12 Mod 0 SPR
Barrett M107
Dragunov SVD
VSS Vintorez
KVSK
CZ-550
Machine Guns
RPK-74
PKM
DsHKM
A Russian DShKM in 12.7mm on Tripod
NSVT
M249 SAW
M240G
Mk 48 Mod 0
M2 HB
Shotguns
Benelli M1014 JSCS
Saiga 12K
Anti-Tank weapons
RPG-7V
RPG-18
AT-13 Saxhorn-2 (9K115-2 Metis)
M136 AT-4
Mk 153 Mod 0 SMAW
FGM-148 Javelin
BGM-171 TOW
Anti-Air weapons
SA-7 (9K32 Strela-2)
SA-18 Grouse (9K38 Igla)
FIM-92F Stinger
Fire Support
AGS-30
SPG-9 Recoiless Rifle
ZSU-23-4 AA gun
60mm mortar