but I don't care.
There is only one way to kill this thing.
6) Let the Assyrians find out there's a high-value target on the most well-guarded of your planets.
7) Wait for AC to show up
As an epic battle rages (actually, as the thing is massacring your troops in job lots), begin accelerating asteroids toward the planet. LOTS and LOTS of very BIG asteroids.
9) Annihilate planet, along with whatever target was bait, and the 50 or so left of your original 50,000 troops there.
10) Hope the Assyrians don't have another one.