Have you ever played World in conflict. That game is class based as well but there is a limit on how many people can play as a class. 
 
Maybe that would be good for this game. Out of a squad of 4 maybe a max of 2 assault, 2 engineer, 2 medic and 1 recon. 
 
Maybe not for hardcore but for rush ............... You need a fairly balanced attacking team in order to win and not a heap of cowards sitting on a hill taking pot shots at enemies even though those enemies have unlimited tickets so it don't matter and all it those provides the enemy with less ground targets to engage meaning the guys who actually try to get shit done are constantly under fire from a superior number of enemies. Snipers just don't give the ground support needed ............

I don't think there should be a class number restriction. People paid for the game and I think they should be able to play it however they want, whether it's useful or not.

No, having a set-number of classes would ruin the game, I can't possibly see that being fun.

It can benefit the overall structure of the game. For example, the unstoppable army of medic zombies will be sent straight to hell, and you don't have more than half of your team trying to snipe.
 
Of course, then we have issues with frustration of trying to play a certain class in each game. Swapping classes is always good for certain situations; and sometimes people aren't very good at whatever class that is in demand. Having medics in your team that don't do jackshit is a problem. Having terrible snipers filling in spots that could be filled by someone else better is a problem.

They have that in Day of Defeat: Source and it is a great feature.  It keeps the game more action oriented, while still allowing for some strategic play.  I would be all for this change since I especially hate being on a team of snipers on rush.

It'll be like AvP then. 
 
 
The two lucky guys get Predator first, and everybody else waits until the next game to try and get it.

" They have that in Day of Defeat: Source and it is a great feature.  It keeps the game more action oriented, while still allowing for some strategic play.  I would be all for this change since I especially hate being on a team of snipers on rush. "

Thanks, but no thanks.

@AlwaysAngry: Except there is no OP class here.

" Thanks, but no thanks.

@AlwaysAngry: Except there is no OP class here. "

I think limiting the classes will not ruin the game, but it will make players frustrated because they don't get to play the class they want to play.  Remember, games are not just made to make people think strategically or be serious about it, but it should make players feel like they're having fun.  Of course, it won't be fun if you're getting frustrated if all your teammates are snipers/recon, but not all people think the same way.  Some have fun by just playing around in the game alone or with their squadmates and friends, some prefer having teamwork as fun.  If you want to have serious teamwork in BFBC2, then play with a clan or with your friends, then set a strategy. :)
 
Besides, sometimes in matches, there are teams that have strategies like if they want to bring the building down, half of the team will change to recon and mortar strike the building.  And when tickets are running low, it's advisable to have more medics to revive your teammates and limit the ticket loss.  Limiting the number of classes in a team will make the game more strategic and will enforce teamwork, but it may lessen the diversity of the game.  What makes BFBC2 multiplayer fun is the randomness that happens in matches that gives fun surprises, whether it may be tactically awesome or just stupid fun. :)

The whole idea of this "set # of classes" thing seems to stem from snipers. 
 
Listen, we all hate losing, and seeing 5 snipers sitting on a hill, but if that is the case, just leave the game, we don't need to limit the player's freedom, that is what is so great about Battlefield.

 Well  maybe they could create a mode for people who want to play like that.

"  Well  maybe they could create a mode for people who want to play like that. "