I think their importance will depend on whether or not any of them have inventory terminals.
Locker access is nice, but there are some things you can only do at an inventory terminal. Changing armors, for example.
It also depends on what kind of guns, their range, etc.
Oh, and AMP stations cause your turrets to fire on vehicles. You need to deploy motion detectors to get them shooting at people. Having a skeeter near-by may also do the trick (their sensors also cause ememy infantry to show up on radar)
__________________
|