For this mission you'll be stepping into the shoes of Reznov during the last days of the Fascist regime. Weapons here are a bit weaker than in the Cold War, though that also means you can be a lot more reckless when charging on the enemy. Even when the enemy attempts to surrender, it's a good idea to shoot them anyway.
Enter the top of the building and you'll find a lot of enemies crowding around. Your grenades are a superb means for killing the German forces quickly. Next, move back outside and you'll be able to use mortar support. As you throw smoke grenades, your allies will shoot powerful explosives from afar.
Some key places to tag include the overhead bridge and the building where Steiner is being held. In the next zone, you should also tag the machinegun nests above.
After a few cut scenes and walking around a non combat area, you'll now gain control as you escape from the British forces. Steal a dropped weapon from the dead British or Russians and advance to the main haul. Place a bomb and you'll start up a count down. Shoot down the rubble on the left and it will create a platform to the upper levels.
Pump your crazy legs and make it across the main level. The British and Russians will fight each other, leaving you free to escape on the rope leading to the icy sea below.