Z-5080 Promethean vision
From Halopedia, the Halo wiki
"Forerunner Vision" is an upcoming armour ability which will feature in Halo 4. It gives the player the ability to "see through walls", little detail is known about Forerunner vision as of now. It is claimed to be ballanced by it's eas of being fooled by its counters such as Active Camouflage and Hologram which are also featuring in the game.
