Why are you so keen on reducing the lone wolves. They are not the problem.
People often cry about this, but i really dont know what your crying about for the most time.
I usually play as a lone wolf, even in objective based gametypes in shooters. Its not that i wouldn't like teamwork, but the average online console fps gamer isn't particularly good, nor does he know how to play as a team. This is mostly because the average online console player never played a tactical shooter in a clan, they have no experience with teamwork. The average console players teamwork is running together to the same dot on the map.
There are a lot of "lone wolves" out there that are more effective than the rest of the team. The bad players need to learn teamwork, dont force away the lone wolves as they usually know what they are doing. I often manage to kill between 30%-60% of my teams total kills in CoD4 and sometimes in the bfbc demo aswell. I work alone, sometimes i manage to take objectives, most of the time i just kill a lot of people because i memorize all hot spots in such games (i dont spawn kill, but if the other team sucks, i will camp outside your base. . I see lots of other players doing similar things, and doing it well.
In many games, if it wherent for the lone wolves, that team wouldn't win. The people that run together on console games are usually rather bad, they dont know how to cover eachother, and what it ends up with, is them staying to close, and one big easy target in close quarters combat.
Clans etc have more organized teamwork which works well, but unless things are organized (which it never is if you play with random people) teamwork doesn't work. Aspecially if your attacking, defending\camping is easy anyway.
Aspecially in a game like this, with 256 player, they need to do something clever to make it easy for players to organize themselves. The only team work i see from random people "teamworking" is usually a silly mass attack that usually come from the most obvious directions, and are very easy for 1-2 good players to take care of (in games like bf, obviously taking care of 128players at once you might need some more people, or some stationary MG's and explosives.
Im all for encouraging teamwork, but do it by making some training tourturial where you can learn how to effectively cover eachother and stuff like that. Dont try to force away the lone wolves.
On the PS3 the biggest problem is that there is no standart ps3 headset that came with the ps3. The amount of mics are low, and thats a huge restriction, make some special pack that costs $15 more but has a headset