Age of Strategy Forums

Rifleman- Cheap and effective against other infantry units, but weak against most other, best when in cover
Engineers- Effective against vehicles and aircraft, but weak when not in cover (health and armor-wise)
Grenadiers- Effective against structures
Mortar Team- Similar to a catapult, but weak in health and armor and only effective against infantry and structures
Spy- This game's version of an assassin
Technician- This game's version of a worker

I am in a rush or I would post them all separately

Elite / Elite Infantry - Rifleman with Anti-Tank Rifles and Grenades. Good against structures, vehicles and riflemen. (Maybe Faster than other infantry)