The Playable Villain Pack Add-on for Marvel: Ultimate Alliance (Xbox 360) has 7 achievements worth 150 gamerscore.
Unlocked all the outfits for Sabretooth.
Unlocked all the outfits for Magneto.
Unlocked all the outfits for Venom.
Unlocked all the outfits for Doom.
Doom has spoken with himself.
Sabretooth has been mistaken for Wolverine.
Magneto has spoken to Xavier.