sooo I'm a bit confused, do we get to choose -any- character we want and join any side regardless of our character's background and morality? because from what I've read from the character roster some of them are evil (terrorists) and some of them are ex-overwatch people. so it got me thinking, why would for example Reinhart (the knight in...shining power armor) even agree to side with Reaper (a notorious terrorist) and fight with him against ex-overwatch characters? I know that many Overwatch people are now considered "mercs" but some of the character bios seem to put them on the side of good. even Tracer doesn't really act like a mercenary in the cinematic.