somebody tell me how to get out of the trehches

im stuckand i dont know where to go i have killed just about everythign there is in this area somebody plleaaassss help me cus im board

is that trenches? i just did that and you have to get into that bunker using your darkness{demon heads} to kill the two guys in the first part of the bunker and unlock the door{from the inside} ,go in there's another door with a small window,enter your demon head,kill the dude and unlock the door.there's one more guy to get rid of and then call up your kamkazie demon to blow through the side of the wall.and you are out of the bunker! go forward and you come across another set of trenches.your objectives get updated there.by the way,these guys are the allies.even though they are disfigured.