ok so here's the idea i've been trying to get across:
RPG ONLY BATTLE!
basically there would be a need for a new, strategical map
weapons available would be, rpg, knife and grenades
the objective of this game type could be simply deathmatch or, as it comes to me while typing this, to destroy the enemy's team "giant superweapon"[i'm thinking of robots, dunno why o_O]
this all would sound to me like a lot of fun since there would be so many explosions xD
also, players could have some sort of "riot shields" that they can use to protect themselves against a direct hit from an rpg, be it even a futuristic "bubble" type shield.
hope this idea catches on.