What can I say? I know this thread is old, dead and what have you. Nevertheless I've scoured the net looking for any Supervision Army fan art and I can't find a scrap of it.
It's kinda disappointing. Even the whole idea of them being "brainwashed by the protodevlin" to fight the Zentradi doesn't really satisfy me much. Talking to an American soldier for a few minutes about their role in the post-9/11 world about asserting American global dominance makes me feel like they're part of the Supervision Army anyway. Well, if we have credible references to similar organizations in today's world, we should have a working background story....
I look at it more like this: You have two big factions of war clones fighting each other, and an entire galactic empire tricked into needlessly spending its entire economy into churning out war machinery on both sides. Of course someone's pulling the strings, just as someone's pulling the strings in today's global society. You don't necessarily have to be a Spiritia-sucking vampire to do that. Just a mean little protoculture hell-bent on depopulating space (Henry Kissinger?) setting everyone up for proxy warfare that the public buys into (Zbiginew Brezinski?) and while everyone's occupied with figuring out where to run to, go off and learn the secrets to omnipotence via gene manipulation...
if you get from this that I might be okay with just assuming Macross 7 may never have happened, well... yeah