Ustanak fue creado como la B.O.W. definitiva. Originalmente, era un humano que se inyectó el virus C por voluntad propia, pero su grotesca forma final se debe a los científicos de Neo-Umbrella.
A pesar de que se trata de una B.O.W. manufacturada, sus facultades mentales humanas han quedado intactas, por lo que es capaz de pensar. Este hecho convierte al Ustanak en el candidato perfecto para llevar a cabo misiones en solitario. Un efecto secundario de la mutación es el posible aumento de su inteligencia, ya que puede utilizar maquinaria y equipos complejos al poco de obtenerlos.
Ustanak was created to be the ultimate B.O.W. Originally a human who had freely injected himself with the C-Virus, his final grotesque form was the result of Neo-Umbrella's scientists.
Even though he is a manufactured B.O.W., all his mental faculties as a human remain intact, giving him the capacity for cogent thought. This makes Ustanak the perfect candidate for carrying out missions on his own. A side effect of the mutation is that it may even have increased his intelligence as he is able to use complex machinery and equipment soon after picking it up.
Below is a memo written by a Neo-Umbrella researcher just after Sherry and Jake were once more captured and taken to the undersea facility.
Our leader has died. Now there is no one Ustanak will listen to. But he doesn't know and probably wouldn't understand even if we told him. He would just keep following the last orders she gave him.
We made a new weapon for him and also gave him a hookshot like the one our leader used, then we sent him after Jake and Sherry. There's something different about him, though. He seems quiet, like he's filled with intense sadness and anger. Maybe he knows...