What kit in BFBC2 would you say is most beneficial for your team?

Recon? Medic? Engineer? Assault?What kit in BFBC2 would you say is most beneficial for your team?
Ok. All of the kits in bc2 can be equally beneficial if used properly and in correct amounts. For example, a team made almost entirely of recons would not be as successful as a well balanced team. I myself fing engineer my favorite because of his stealthiness and ability to take out tanks.

Always remember, balance is key.What kit in BFBC2 would you say is most beneficial for your team?
I recommend using the medic class. Its very useful if you want to keep your teams morale up and has some pretty bad-*** guns.