2015, 30 -mm, a-10, art, avengers, avengers: age of ultron, aviation, barrels, battle, captain america, chris hemsworth, circuits, comics, eelezny man, elizabeth olsen, fiction, gatling, gau-8 avenger, gun, hawkeye, hulk, hydra, installed in us attack aircraft, iron man, loki, marvel, marvel comics, minimalism, press conference, robert downey jr ., sch.i.t, serra avenger, seven-barrel, shield, skull, suit, superhero, superheroes, symbols, team, the avengers, the first avenger, the hulk, thor, thunderbolt ii, tom hiddleston, tony stark, torr, unit, villain, war, weapon, wings, with a rotating