Batty was a character cut from Prometheus. He was originally going to be part of Peter Weyland's security team accompanying him in "secret cryostasis" aboard the USCSS Prometheus, and was likely to be killed near the end of the film.
Batty was to be armed with a compact version of the M41A Pulse Rifle, featuring a 95-round drum magazine and vertical forward grip. However, like the character, the weapon was also cut from the film (although the M39 Submachine Gun from the 2013 video game Aliens: Colonial Marines is similar in concept). He was also equipped with Weyland Corp equipment.
Behind the Scenes
A costume study of Batty was created by Prometheus senior concept artist Ben Procter. The face of Batty in the costume study appears to be based on Rutger Hauer's, which is a reference to Hauer's role in the 1982 film Blade Runner (directed by Prometheus director Ridley Scott) — Roy Batty.