I would think perhaps pairing a heavy gunner, with a sniper, a few assault classes and a few room clearers with smg's and shotguns would provide a more level encompassing destruction. If everyone has a weapon, perk, and anything else that compliments the team rather than opposes it or clashes, it would be awesome i think. Then of course training in that discipline would be awesome so that teams could join in with their class and be able to chain kills without much instruction. Kind of like the hunter and warrior classes in world of warcraft.