Arma 2: British Armed Forces (Steam Key | RU + CIS).

In summer 2012, less than two months after Operation Arrowhead successfully routed the Takistani military regime, NATO coalition forces face a large-scale outbreak of guerrilla insurgency.
A mechanized force of British troops, with support elements of US Army TF Knight, are about to deploy and embark upon a large scale counter-insurgency that will define the future of the coalition presence in Takistan.
Additional info about ARMA II series:
Building on 10 years of experience and constant engine development, ARMA II: British Armed Forces boasts the most realistic combat environment in the world. It models real world ballistics & round deflection, thermal imaging, materials penetration, features a realtime day/night cycle and dynamic wind, weather and environmental effects.
Key features:
New vehicles and weapons
Modern British troops in multi-terrain, desert and woodland camouflage
Personal weapons: L85A2 and L86A2 rifles, L110A1 machine gun, LRR and AW50 sniper rifles, N-LAW AT launcher
New vehicles: Jackal 2 WMIK all-terrain vehicle, modernized FV510 Warrior
New helicopters: AH11 Wildcat (multi-role), HC3 Merlin (transport)
British versions: offroad car, Chinook transport helicopter, AH-64 Apache gunship
Desert and woodland paint schemes of the ground vehicles
New singleplayer campaign
Player will command a mobile observation team of British troops into battle with the Takistani insurgents. Short campaign will be focused on depicting the assymetrical warfare with a guerilla force and the counterinsurgency operations.
Multiplayer modes
Cooperative scenarios featuring all the British units, vehicles and equipment.