Connor has never been all that quiet about his negative opinion of the Initiative and this whole bomb and moon base mess has just left him Very Done with everything Initiative-related. He'll definitely want to help out, one way or another.

While he will try to accomplish things in as peaceful a manner as possible, he'll probably be quick to turn to violence when faced with it, as frustrated as he is right now. He has no real powers to speak of, but he is a skilled and particularly brutal Assassin. Also a huge man.

Unless things go really well for the mutineers (haha), he's not likely to back down unless forcibly stopped. And good luck convincing him he's in any way, shape, or form wrong about the Initiative. :') I welcome all horrible plotting and consequences with open arms. Or will when I have a better idea of the extent of his involvement.