Uhlman

I still can't finish achievements like Waylaid Grenades, Go Out With A Bang, Stop Hitting Yourself, and yes, SA Quaterlies Quantified.

I killed a lots of enemies using only the Armageddon, I even let my companions go back to ship, but it still doesn't count, anybody knows why?

I might found out how to solve the problem, if you finished the mission Diabolical Drones of Doom, you have to talk to Trooper Faulkner, the one on the Northwest exit of Fairfield, who actually is the mission's starter. Then go to Ethel Tinsley, who has a giant pet in the Northwest of the town. After your dialogue with her, Inez will spawn right after. Then she'll walk into the Town Hall.