Iron Man armor (Mark XXXVII)

Main system
 The Mark XXXVII Deep Sea (or Hammerhead) suit was created after the New York incident. It is designed for the deepest parts of the oceans, can withstand extreme pressure and has high-power work lights that allow visibility in murky waters.

Upgrades
To be added

Iron Man 3
Created after the New York battle as part of the Iron Legion. When the "House Party Protocol" was ordered, it and the rest of the Iron Legion came to Tony's side. It was the first to attack, attacking a group of Extremis soldiers. It's head and arm was ripped off and it flew out of control, crashing into the oil rig, nearly collapsing it if it wasn't for Igor.