Tournaments are supposed to be at the core fun. That is why we run votes so people can vote what they feel is the most fun to play etc. Voting runs till Friday night. Right now its close between Plant and Gun Game.
Are there prizes for winning tournament games? If there are I would expect at least a little competitiveness. Gun Game isn't really a mode that encourages strategic competitive play.
I figured tournaments would be more geared toward competitive play while there would be plenty of time for for-fun free play outside of the tournaments. At least that's been my experience with other LANs. In tournaments, you play to win, right? Isn't that the whole point of a tournament? To find the best player? I mean obviously you're gonna have fun either way, but I wouldn't expect anyone to be goofing off and experimenting with suicidal strategies in tournament play.