The tanker needs fuel

There are two ways to get fuel for the tanker.

The first is by rescuing Badger's girl friend from the aliens below (shes at the top corner of the lower level) and then asking Badger for a favor.

NOTE* This results in Badger being killed by the emperor's man later on (no karma loss).

The other way is to obtain a hardened power armor for the Shi scientist (which costs a lot at your own expenses).