It is a parameter you can pass to the vanitygenerator in various ways . You can pass a regex to it , but that slows you down to about 14 of your hash rate . e . g . vanitygen r 18 But it ' s not a simple parameter switch . It needs to be done intentionally and methodically . Quit editing with theories if you don ' t even know how the tool works . I linked the fucking wiki for it . At least open it . <| sep |> I play nightmare mode and I ' m at the beginning of the campaign . Zombies take 46 hits to the head to die with a water pipe , and 30 hits to the rest of the body . I ' ll let you in on a secret . Ready ? IN HARD MODE AND NIGHTMARE MODE , YOU ' LL HAVE TO AIIIIIM ! <| sep |> Good thing everyone has them on sale ! <| sep |> One of my favorites for sure . If only there was a Mage Knight Lite version out there .