I want a first-person multi-player shooter that starts you out with all weapons, all boosts, all armor, etc. As you get better, it’s all taken away from you, bit by bit. The crappy players will have more weapons and armor, etc to choose from, while the incredibly talented players have less and less as they get better. When, one day on the battlefield, you face a man in his underwear armed only with a knife, you will know fear.
That’s the thing; Either you straightjacket players into doing a specific thing (doesn’t sound like much fun, but hey, it’s what MMOs do) or they go do everything EXCEPT the thing you wanted them to. I guess your idea is at least a straightjacket with the arms in a different position, and maybe a different color or something - though I’m not currently convinced you could build a game that would successfully ‘encourage/force’ players to actually act as a part of a larger unit in some intelligent way. But then, players are basically the reason I’ve lost all hope for the MMO genre. 