As she promised to Peter, as soon as Faith knew where she was supposed to go she headed out. Loaded up with weapons she didn't really care who got Cordelia out, so long as she was safe. Actually, she didn't care much about anything, beyond getting the kill.
As she arrived she saw the fight already underway. With a snarl she pulled out her stake in one hand and her knife in the other, moving in quickly, slamming one in the heart before twirling the knife with a deadly accuracy into the neck on another vampire. She barely noticed the others there, just focusing on killing one vamp after another.