Garius Black was ex-military mercenary of United Earth Directorate till first works on Zerocross projects. Due to sudden casuality Garius once took, the unfinished prototype was to be equipped by Garius himself. He also used to be an ally of James Headnail. However, soon after Garius equipped the prototype, he backstabbed Directorate by murdering a group of Syntraforce's scientists and escaped with everything he took with himself. It was all due to Garius Black's past he enjoyed even more both before joining and after betraying UED. Past about him being one of most dangerous criminals in universe, one who is a pyromaniacal pyrokinetic pyrotechnic. He is also only known person with dark-element adaptation of pyrokinesis, with powers creating projectiles made from grey flames. Now, one of James Headnail's mission is to find and arrest or eliminate Garius Black. James took everything about that particular mission personally. The mission one way or another became difficult due to Garius working for Arcturus Mengsk as a mercenary leader of Aegis Guard and Emperor's Shadow royal guards.