If you are stuck on this quest at the part “Defend the Beach” this is how you proceed. If you get to a point where majority of the little risen are dead and are now spawning the abominations but most or almost all of your fellow fighters are dead, you have to revive at least 1 tactician and at least 6 fighters so they will attack the abominations. After all the risen are dead and you have at least 10 fighters alive it will move onto “Speak to Almorra”. Hope this helps
(edited by Spritemystic.2693)