As far as I know, not been suggested officially before. I've checked the "DO NOT SUGGEST" sticky.
Why don't we have more than 2 teams battling it out for each other, why don't we have say 3? It would make those huge gen maps more appropriate with more teams, and rather than the current mode with 2 players where its attacking and defending against the one team, we would have more competition and more strategies. One team would have to defend against 2 teams whilst vying for both their intel. It'd also introduce competition over enemy intel. E.g. if we add a red team, say blue takes green intel, but then the red team kills the guy carrying the green intel and attempts to capture it for red. It'd encourage more strategies, competition and more diverse gameplay.
However I must say if the current team limit is still at 32, it means each team will be smaller than the usual game with 2 teams only.
Benefits:
-Diversity in gameplay
-Adds interest
-Better use of maps
-Intriguing strategies to win against 2 or more teams
-Better use of buildings
-Players will have to THINK MORE and work as a TEAM better
Oh and it could be serverside so its OPTIONAL.
POLL HAS BEEN CREATED! PLEASE VOTE. IF YOU HAVE VOTED NO, IT WOULD BE APPRECIATED IF YOU EXPRESSED YOUR OPINION AS TO WHY.