i always go around building tents and houses to get lumber around map ... i wait until i have over 10k lumber before i settle down at a base ... since i have so many lumber i build 2 walls in a line and upgrade them to amethyst .. i built spires at the back so they can inflict more damage... when vamp comes u can repair the 1st wall at the front to stall time .. if he can destroy he still needs to destroy the 2nd wall so vamp would usually run away first as he will usually get hit till very low hp by the spires at the back ... after hes gone remember to rebuild the 1st wall ...
[ This tactic usually works but it will not if some noobs keep feeding vamp till he get too fat ]
[ Also beware of shades , get ur tracker to go around ur base so that the vamp will not tele in ]