Hello. I know this game is years old but it's fun, maybe someone can assist before I quit. I follow Klaus up some stairs to the roof and he has to unlock a door which is stuck. No matter what I do I get shot or Klause gets killed. I must have tried it a dozen times. Any ideas?

This is not the easiest part of the game.

Stay away from Klaus, move to the opposite side of the roof, and keep on moving between the crates: you can even jump on them or taking cover behind them if necessary.

Take a look here.

Hello. Thanks for the tip. It didn't seem to work. I keep getting wiped out all the time and I run out of machine gun ammo. Is there another way to do it? Or do I need to restart from somewhere?