SSPS military applications - crit please

A lot of your plot is going to revolve around these
plans and counter plans. I wouldn't make your
orbiting guys completely invulnerable and immune from
attack, and would definitely have the tunnels and
flights and other counter plans. Lots of diplomatic
stuff too. The story as described so far reminds me a
little of The Moon Is A Harsh Mistress, and although
the moon guys in that story were the typical
Heinleinian ubermenchen, it wasn't a complete cakewalk
for them either. The harder you make it for your
protagonists, the better the story will be.