Ah... This...
In my mod, there something called the "Angel Wings Supreme Command Center."
It is basically a big ship armed to the teeth, and serves as your command center.
This.-Its Mobile
-It has 5 turrets(1 on the main unit, the rest are spawned in)
-Main Turret is called 'Science Cannon'
-Side Turrets are just called 'Normal Cannon'
-6 point defense lasers
-6 auto-cannons
-Can still support general's powers
-Can summon raptors to patrol over it
-Can paradrop a special type of tank at general's rank 3
-Can launch a barrage of cruise missiles
All in all this one was a tough one to code.
Its not going to be overpowered since every faction is gonna have these crazy features for their command centers.
I can definitely see people doing 'Command Center rushes' in my mod.