Engineer: Advanced construction that you let build things like bunkers, tank obsticles (dont know the name) Rifleman: I really love the idea someone mentioned bevor, big ugly armor for the rifleman that let him take more damage and let him carry heavy weapons. Grenadier: Mines that explodes when a target is near not only by contact. A weapon that uses shells instead rockets to take out tanks. Scout: give the scout a fake vehicle that he can use to confuse the enemy. He can choose by himself what vec he want. That vehicle takes only one hit and cant shoot.
Riflemen: 'Bouncing Betty' mines, fire a couple of seconds after triggering. Does damage to all infantry in ratio to their distance from the mine, out to 25-30 feet.
