User blog comment:Deathmanstratos/Black Ops II Apocalypse DLC announced/@comment-4454520-20130809225553/@comment-67.251.13.227-20130810004805

Their memories were wiped by 115 during experts around the time of verruckt. Perhaps origins is why takeo and Nikolai were experimented upon and why Dempsey was experimented on after he was captured at verruckt