Dont own a Xbox, but remember some from my early pc-days.
Battlefield 1942, bunch of enemies, 2 tanks and 2-3 guys in a small village. Me barefoot as engineer, used hit and hide tacts to get the tanks with explosives, then sniping ppl through windows when hiding from shells. It went on for a while, and after tanks were dead they accused me of wallhacks, and various other things due to the fact that none of the tank shells hit me xD (they fired through doors, windows constantly).
Was damn lucky is all I know ^^
Got hate-messages multiple times when using the Tiger tank as engineer. They never got how it never died xD Always hammering at the front part, were the armor is very tough.