I hear
The Last Express is pretty good.
...wait, crap, that's World War I. I always get those two confused.
edit: Okay, I've got it.
Undercover: Operation Wintersun coming this september.
...unless you meant you wanted a WW2 non shooter on gamecube. I don't think I can help you there.
edit 2: In answer to what I think was your real question, Time Splitters 2 is pretty good.