The unit types can also be divided into air, land, and sea units. There are three general unit types: soldiers (infantry & mechs), direct combat units (tanks, recons, subs, jets, etc., transports such as the APC, and indirect combat units (artillery, battleships, missile launchers, etc.). COs Commanding Officers, CO Powers, and Super CO PowersĮach commanding officer has a default ability that affects certain unit types all of the time.