I can't believe people play this crap... waste of a good keyboard.
I don't see why you post this crap either. Waste of good page space.
Anyways,
I'd say if you want precise, quick sequences, go for Black. It's a bit stiffer than Red, which may not be good to have precise combos since they're so light.
Don't even consider Blue, obviously. Double taps are terrible on blues, and they're mainly for typing.
Browns are inbetween, not a bad choice. Personally though, I thought Browns felt like a rough Red switch with sand in it that produces a bump at a set point. I really didn't like the feel, but that's just me. Not sure if you like tactile feedback, but go for Browns if you do. Otherwise, for good gaming, go black. Not good for typing though, very stiff, but you said you don't even need to type on this keyboard anyway.
FYI this game looks pretty cool. Imma look into it hahaha.