Not having locked weapon classes unbalances the vehicles

Having a locked weapon system meant that if you wanted to play engineer, you were forced to play CQB as you could only play with SMGs.

The problem with weapons not being locked is that now lobbies are filled with sniper engineers, assault engineers, CQB engineers... Flying in this game is just even worse than in 2048, everywhere you go, you are constantly locked in by AA missiles, playing a tank means half the lobby is running RPGs.

Although I somewhat like not having all the weapons locked, it completely unbalances flying helicopters or driving tanks.