Yard By Yard: Civilian backup
In one of the alleys, you will encounter an old women just sitting in her backyard. Next door to her lives a young man with glasses, lying on his lawn next to his shed. In his yard is a ladder propped up on a couple of boxes. Use this ladder as a ramp and walk across it. In this yard is a man with a helmet standing next to his shed. Do not shoot him. Walk up closely to him and he should have his arms raised, is clearly too old to be in the military. Stare at him until he puts his arms down and reaches into his shed window for a shotgun. Still, do not shoot him. By this time a Nazi soldier will storm into the man's yard. The old man will fire at him, killing him, and leave his yard looking for more Nazis. For good measure, stand as close to him as possible while he leaves his yard. He will give you a nudge to go while he covers you.