The ironman's combat kit is a bit OP. There's a small area around the targeting reticule that locks on to your opponent. Although the projectiles don't home in like captain America's shield, if the enemy isn't too nimble, they're getting hit. The Unibeam is a bit more reasonable when it comes to targeting. Its almost like a lame version of the railgun. Long range, 90 dmg, bonus dmg vs vehicles... Long cooldown, but can be used in flight with ironman's boots.
store.playstation.com/#!/tid=CUSA00572_00