I mean the pilot was supposedly supposed to eject into the CCA base in the canyon with you and maybe commandeer a vehicle with you but it was never implemented. You're supposed to just go in alone.
A modder known as Coxxon made "BZ: Total Command", a mod for BZCC that brings his personal spin on the BZ1 campaigns into the BZ2 remaster. I took his own version of "Behind Enemy Lines" and modified it how I would have hoped/expected the whole situation would play out if you're curious: https://youtu.be/SEtXgVdPDCQ?t=5
I thought about doing something similar for BZ98R but never got around it.

NSDF 6 - "Behind Enemy Lines"? On Venus? There's nothing particularly wrong with that mission. I don't know how old you were at the time but I am guessing that you just didn't understand what you were supposed to be doing.

When I was a kid, I could never get past this one mission.. where I follow some dude in a tank, and then he blows up his tank. I blow up my tank, and I think we're supposed to deploy into a CCA base, but then he just ends up walking back to the tank. Did you fix this mission? That would be amazing!