Clan Quest Mod is an add-on for Vampire the Masquerade: Bloodlines that not only adds several new quests, and an achievement system, but also integrates several other mods for the game, including the Unofficial Patch, the Arsenal Mod, the Camarilla Edition Mod, and more!
This is version 2.1 of the Clan Quest Mod. Changes include updates to UP and CE, an in-game achievement system, yet another new quest, more new voice acting, and a cut scene featuring VV's striptease. Just unzip the file and run the installer. Reference the packaged readme, for more details.