I won't have a whole lot of free time to do a million different things, so Steve's scenario is basically a pitched battle to take a German stronghold. Ancient castle, hordes of Nazi troops, terrible weather...

In his original memories, he had the Howling Commandos backing him up. In the altered memories, they'll be gunned down in short order, leaving the players to either back Cap up in punching Nazis or try to find the generator somewhere in the stronghold.