How to Defeat Captain America in Ultimate Alliance

Pursue Captain America to the open area at the end of the "Faceoff" pro-reg mission. In this arena, avoid his shield throws and close range combat. Attack Captain America with ranged attacks until you take away a third of his health, then he'll run away.

Follow Cap to the second area, where he will be joined by Iron Fist. Iron Fist has the same weaknesses as Cap, so dodge his close range attacks, keep your distance, use ranged attacks, and watch for the explosive barrels that are tossed at you. Cap won't bother you too much if you concentrate on Iron Fist. Defeat Iron Fist, then use ranged attacks on Cap to get his health down to 50 percent. Always be ready to dodge his powerful shield charge, so play cautiously.

Follow Cap to the third area where Luke Cage joins him. Cage is much tougher than Iron Fist and about as strong as Cap, so a Guided Fusion attack should be used to take him down as quickly as possible, since using one on Cap would be a waste due to the way the fight progresses. Once Cage is defeated, keep hitting Cap with projectiles, then Iron Man will join you to help finish Cap off.