It's why Cal isn't leaving the guy out of his sight. He's not sure what the man might do, even with knowledge of how to fly the ships.

"You won't get far," he says solemnly. "The only other place you can go with the ship is Sh'Ka, and it's not in much better state than Temba is." He steps up the ramp after, Wesker, pausing. "Permission to come aboard?"