This papercraft is the Iron Patriot, the name of a fictional powered exoskeleton in Marvel Comics, from the Iron Man 3 film, the paper model created by Julius Perdana. The Iron Patriot armor is first worn by Norman Osborn.
During the Dark Reign storyline, Norman Osborn first dons the Iron Patriot armor when he establishes the Dark Avengers. The armor serves as an amalgam between Captain America and Iron Man. Norman Osborn's attempts to exert his authority were increasingly jeopardized by various superheroes. This includes Tony Stark tricking Osborn into attacking him while Stark was suffering from brain damage in his original suit of armor, and the New Avengers using a tracking device Osborn had planted in Luke Cage to trick Osborn into blowing up his own house.
Osborn then creates a rationale to invade Asgard, claiming it poses a national security threat. During a pitched battle with several superheroes, the Sentry causes Asgard to fall to Earth. Stark removes the Iron Patriot's armor remotely, revealing a maddened Osborn wearing green facepaint with yellow paint to create a goblin-like look. He tells them they are all dead as the Void is released. Osborn knocks out Captain America and tries to escape, but is captured by Volstagg of the Warriors Three. Norman Osborn is incarcerated in the Raft penitentiary, where he blames his Green Goblin alter-ego for ruining his chance to protect the world. A new Iron Patriot appears in the Marvel NOW! event.
The Iron Patriot armor utilized a version of Iron Man's armor painted in the colors of the American flag. The armor featured superhuman strength, enhanced durability, flight, magnetic impact blasts, heat seeking missiles, miniaturized lasers, flamethrowers, and a communications system housed in his helmet which allowed him to interface with any U.S.-controlled satellite or computer network. While the original Iron Man armor utilized repulsor technology, Osborn's design does not. Stark destroyed all but one repulsor, and stated that "Oz is too stupid" to make his own repulsor-based weapons system. The star shaped Uni Beam projector on his chest because of its shape, also has a less powerful output than that of the original Iron Man model.
This papercraft design is not done, here is the Part I: Iron Man 3 - Iron Patriot Free Papercraft Download