Custom build "IVB Erin"

Custom base:
IVB Erin, or Infantry Vehicle Base Erin was designed for vehicles to be repaired, infantry to recover from battle, and to hold enemies prisoner. This fort is based upon the fact of protecting the forces that are living on the planet from enemy ground forces. This base is small, but can still keep a large amount of units.
Constructional criticism is appreciated, tell me what you think.