[raynor]

I had never noticed this.

I looked up this stuff in se4\data\CompEnhancements.txt. It looks like the range/to hit bonus is just for bases.

Large Base Mount adds 2 range and gets a 40% to hit bonus
Heavy Base Mount adds 4 range and gets a 60% to hit bonus
Massive Base Mount adds 6 range and gets an 80% to hit bonus