The Mutated Human.
The Mutated Human was a strange example of a human being. He was mutated to have devilish features and enhanced abilities. Little is known about him, other than that he was in the Earth Building when it was invaded by the Alien Advance Scout.
When the alien attacked, the Mutated Human used his special abilities to defend the Human outpost. However, he was shot by the alien and (presumably) died. (Alien Invasion Series: "ALIEN INVASION!!! Part Zero- Prologue")