In the Fallout 3 version of RobCo Certified, there's a perk, "Xenotech Certified", that lets the player build and fix up the alien drones from Mothership Zeta, provided they've visited the Mothership and have the skill requirements for the perk (I believe either 40 or 50 in both science and repair). The New Vegas version of RobCo Certified lacks this perk for obvious reasons.
TTW reintroduces the alien robots, but unfortunately they cannot be repaired in any way. I was wondering if someone would mind making a RobCo Certified NV patch that reintroduces the Xenotech Certified perk, so as to be able to fix those neat Mothership Zeta drones.