Hey everyone

So I'm in the midst of playing through Mothership Zeta (insert boos and hisses here), and so far I've done a good job making sure I have all the goodies the game throws my way: Samurai Armor and Sword, Winterized Medic Armor, etc, but one thing I don't have yet is Paulson's Revolver (though I do have his outfit). I'm in the middle of the last mission in the level, and I was wondering if the gun is worth killing him/letting him die. I know that he disappears from the game once the DLC's over, but I still have a hard time justifying killing him to get his gun (even though a non-scoped revolver is something I desperately want).