Warhammer 40,000: Dawn of War - Winter Assault Q&A

Ok so I'm up to mission 3 where you have 2 be eldar and u hav to kill the warboss and get the webway teleported.
1) The bonesinger wont teleport and the place I hav to get to is blocked

2)I can kill the warboss but then I get murdred every time.

PLEAS...