Some sort of dmr that the engineer and maybe recon or assault would be a great feature. Giving engineer a mid to long range gun is a need. Also adding a laser guided missile to that class to take care of the helicopters. Adding to that vehicles should have either limited gas or ammo. I have been playing forefront since launch and vehicles have been thr bane of my existence. If youre up against a really good pilot they can go half the match without being taken down and getting the mist kills.