Call of Duty 2/The Winter War

Red Army Training
Difficulty: Practically none

This is the first mission of the game. Have fun learning the basics. Just follow the instructions it gives you, and you'll be fine.

Demolition
Difficulty: 3 out of 10

You start in a clothes store warehouse. Follow your comrades through the hallway, and dispatch all the enemies in the building. After you have done so, take cover behind the windows and shoot at the fleeing Germans. Step outside; if you don't, your comrades will. Follow them. Take cover behind the low walls, advancing slowly.

Once you have reached the building on the other side, go inside. You can choose to enter through any window or door, but right side of the building contains more enemies. After you have cleared the building, go through the hole in the wall at the back. After using binoculars to take a look at the other side of the trench, take the stairs on your left. Enter the trench, ducking under the beams. Tanks will pass above you in the middle of the trench.

Continue through the trench. At the building at the end, go upstairs. As you listen to the morale boost, take position either behind the destroyed wall (where you will find a sniper rifle) or behind the sandbags. After a brief moment, enemies will come pouring out of the smoke. Fight them until somebody says they are retreating, then follow your comrades.

Inch towards the building covered with swastikas. When the MG-42s have you pinned down (this usually won't happen in the Easy or Regular difficulties), throw a smoke grenade and run toward the furniture at the right corner. Enter and clear the building. After doing that, go upstairs, where your superior will order explosives. The engineer is at the entrance of the building. As you set charges around the building, some enemies holed upstairs will shoot at you. You can choose whether to shoot back; it doesn't really matter. After you have set the charges, run out and watch the building break down.