Rifleman, Missile infantry and Sniper news

As players suggested, I made 3 different types of infantries.

Rifleman use automatic rifle, can upgraded with a rifle grenade.
Missile infantry can launch rockets to attack ground and air enemies.
Sniper, is an unique unit, need "Special Force" command ability to unlock him. The sniper can kill other normal infantries in one shot. He can also attack vehicles and buildings by calling airforce to bombard the target.