A creature deployed by Neo Umbrella to capture Jake, who poses a threat to their bioterrorist activities. It's name derives from the Serbian word for "Rebellion".
Ustanak was created when a Neo Umbrella researcher injected himself with the C-Virus in an attempt at creating the perfect B.O.W. (Bio-Organic Weapon). Compared to most other B.O.W.s, the Ustanak is intelligent and has an almost indestructible body. It is also able to swap out its right arm with an array of different weapons and tools.