Objective 1 : Secure all enemy maps and documents.

First off, just follow your Sergeant until the enemy starts shooting. Keep an eye on where they're coming from. You'll want to lob a couple of grenades their way to soften them up, then just rush in and finish off anyone who's still standing.

Next, you'll need to push through the trenches. When you hit the first 90-degree turn, be careful. Peek out just enough to see the three Germans waiting for you and take them down.

After that, you've got a tricky part. You absolutely need to stay low. There are two MG42s that will shred you if they get a clear shot for even three seconds. Your best bet is to creep forward until you can just barely see the next Artillery Gun and the enemies around it. Toss two grenades into that area, then move in to clear out any survivors. Wait for Sgt Moody to do his thing with the explosives.

Once the artillery gun is dealt with, keep pushing through the trenches. You'll see a German soldier right before a door. Take him out, then head into the room. Inside, you'll find about five Germans. Three are hiding among boxes in the first room, and the other two are in the next room over. Clear them all out.

With the enemies dealt with, you can grab the first set of documents. They're on a table right next to a radio.

After you've got the documents, head out the door and stick with your squad to the next area.

You'll arrive at a spot where some allied soldiers are fighting a larger group of Germans. While the Sergeant is busy talking to the Medic, keep your eyes peeled for more Germans trying to sneak up on you. Eventually, the Medic gets hit, and the Sergeant will have to go out and rescue the wounded soldier.