I'm liking him so far, so does he have his own robot that he mainly controls. Would an enemy with cybernetics/robotic parts or even an actual robotic enemy be completely at his mercy? Can he be out-hacked by a computer? Sort of like mind control where some people can block it out? Also, if he could do this, Sanctum would be very cautious about letting him on the team, as he;d be able to access classified information from computer terminals. I think the suit of armor is actually formidable by itself, perhaps Press could have a symbiotic relationship with it, so that only he can use it. Also, Sanctum's program V.I.T.A will provide useful tactical information, so I don't know if Horus' surveillance would be needed. Remember he doesn't actually have to be a titan, he could just be a gifted human prodigy capable of developing a suit for himself.

Also I can PM you the character sheet for the new character, and see if you approve.