Talk:Warframes/@comment-72.68.144.112-20190113235600/@comment-1.53.17.115-20190124130412

Well if you played all quest, you already have the answer. "Warframes are built upon preexisting human bodies using the Helminth and a specific strain of the Infestation." ​​​​​They are made from human body combine with infestation and then add the metal armor. Like normal infested (corpus, grineer, etc...) they lost their mind and control. As in the sacrifice quest told, when Ballas make these warframes, no orokin techonogy or person can control them, yet tenno. And why Excl umbra can control himself, thats because of his son death, he never forget nor forgive himself, his memory stain deep inside him, so he isn't completely lost like others.