This is what I enjoyed about the first Tribes game. I remember wandering around my base, repairing the generators, placing turrets, fixing sensors, and murdering attackers. The rest of the team would be off grabbing the other teams flag or messing up their base.
IMO the sequels didn't get the balance between base maintenance and flag running quite right.
I'm not sure how I feel about this. On one hand, access to transit is great. On the other hand, I feel like the greenhouse gas reductions would be minimal.
They can. They just choose not to.