Having 3 power weapons on such a small map generally isn't a good idea. That why I said that it seems a bit much.
Nah bro the next map I heard has some gauss hogs, a scorpion and maybe like 10 grenade launchers... all on the same size as Premise.
Anyway, I played a few matches on it now and 3 power weapons are definitely too much. The start of the match pretty much always goes like this: Team A grabs their own sniper and rockets. The rocket guy kills both guys on team B which gives team A the chance to grab team B's sniper while still having the rockets. From that point onward team B will get sniped over and over again with a rocket in the face here and there too. The map is fine, but the weapon lay-out makes no sense for a 2v2.