Were the M Ts responding to my signal? Or something else?
I'm a little lost with who's talking to who myself.
The Interior Union are all pro-human correct? Well The Empire and possibly a third faction are also pro-human.
Ah. Well no alliances for them then.
Unless... Are they Obviously Evil or are they smart enough to trick people into helping?
They're not obviously evil at all. Nor are they hiding, however. Where they come from, they have no one to hide from, since the only enemies they have, ORCA, are just as monstrous and callous. They can do whatever they want.
As it is, they'll just look like a Corporate State with appalling living conditions and an abnormally large army. It's only if anyone bothers to look into what they're doing that they'll realize how things are. The citizens aren't oppressed, they're just there.
You got the Disney villains, The Empire, I think Monkeyface is on, Grey should return soon, and Hydrall is here.

@Hydrall: Gil blasted John Freeman off one of them with some wind magic trying to help them.
Always be ready to do the unusual and unexpected.