Iron Man achievements

Complete all missions on Normal difficulty (or harder)

Complete all missions on Formidable difficulty

Complete Hero Objectives for all missions

Complete any mission (other than Escape) without using weapons systems

Defeat Iron Monger using the Silver Centurion armor

Defeat Titanium Man using the Classic armor

Protect outlying occupied buildings in the Save Pepper mission

Complete the One Man Army vs. AIM-X challenge without an armor breach

Avoid harming the destroyer and its crew in the Lost Destroyer mission

Destroy drones without civilian damage in the First Flight mission

Avoid disrupting the city's power supply in the On Defense mission

Defeat Titanium Man before his second recharge in the On Defense mission