Also, the King Raptor has six missiles instead of the usual four. King Raptor - An advanced prototype, which has better armour and firepower than the Raptor, in addition to point-defense lasers to take out incoming missiles and detects stealth.Avengers require the Strategy Center to build.Lvl 4 and 5 Gunship is more potent than the Regular USA Generals Power Spectre Gunship available at lvl 3, second rank available for slight boost in armor and firepower.Airfield granted a significant armor bonus.Crusader Tanks and Paladin Tanks are unavailable.Stealth Fighters are available from the start.This also applies to some support power airplanes. All aircraft cost less and all but the Comanches are equipped with Point Defense Lasers.