Not just transportation.

You get paid parking in both bases, but only one parking lot at a time.

You will typically start and end in the same base.
But if CS ends you in the other base, you will get:
1) Free limo to the other base
2) DH pay to the other base
3) Something else that is slipping my memory right now...

If you choose to end in other base, you will get:
Free limo to other base