Buy the Alien Rulers DLC,
*** Spoiler - click to reveal ***craft the serpent suit, R.A.G.E. suit, and Icarus armor. Equip all three, take them on the same mission, use the serpent suit's frostbite ability; the R.A.G.E. suit's Rage strike ability; and the Icarus armor's Icarus Jump ability within the same mission. All abilities are a free action, but the Frostbite and Rage strike require an enemy target to be available.