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it's a bird, it's a plane...it's a flying hummer?
As for those large pesky tanks and planes buzzing about spawn points - that should be left to mappers. A bunker with a few good defenses and the spawn points inside (so vehicles can't get in) is really all that's needed, and that's up to the mapper, not the engine. Engine gives the tools to run a game, but it doesn't make the game.