You were playing your favorite game, Call of duty: Modern Warfare 3 on your Xbox 360. Suddenly, you faint

You then wake up sitting inside a truck, you wear a tactical vest and Russian attire. You hold an Russian firearm. The truck was filled with other Russian personnel's like in MW3. The truck came to an halt and you with your comrades exited from the back; You're in Caucasus Mountains, Russia

Your mission to guard Makarov's safehouse and to eliminate the British S.A.S: Task Force 141