Mex

Mex is a slaver guarding the gate to The Pitt. He will take all your items in your inventory (except the "hidden weapon" you received from Werhner and then tell you to enter Downtown. Your things will be returned to you after completing the Hole. All items taken are in a footlocker right behind Faydra.

Weapons
Mex also has the Infiltrator, the new silenced and scoped Assault Rifle featured in The Pitt (DLC)

Appearances
Mex appears in The Pitt DLC pack for Fallout 3.