Instead of putting one turret each type, why cant we put three turret independent of the type. So we are free to choose the best layout for the base, we can build a exclusive base against armor, infantry or planes. Example: A user could put 3 xiphos or 2 xiphos and 1 armor etc etc ...
That would be cool. Bases need some love. For the amount of time and effort it takes to make one, they should sand up to at least a tank and one foot soldier. The upcoming spawn points should help a ton in the future. But I still don't think a single tank should be able to out DPS a repair module.