For the tactical grenade, see Gersch Device.

"Stupid Gersch."

— Tank Dempsey

Gersch was a Soviet scientist and the leader of the Ascension group. Gersch oversaw of Project Thunder and worked with Yuri Zavoyski on the Gersch Device (Project Mercury) until he transferred Yuri to rocket research. During Yuri's descent into madness, Gersch noted his increased aggression to the other scientists, as well as the fact he was muttering to himself. He then confronted Yuri when he found him working on the Gersch Device, and threatened to have him permanently removed. Yuri tricked Gersch into activating the Device, which sucked him into the black hole and might have even released the Zombies onto the Cosmodrome. He was originally thought dead, but he was in fact trapped by the Casimir Mechanism. After being freed by Tank Dempsey, Nikolai Belinski, Takeo Masaki and Edward Richtofen, it is unknown what became of him.