Welcome to the forums Acidn!
Now this is what I call a game trouble thread, thanks for including an image, and nice grammar!
Right, what you do is travel through the pressure door, move right to the wall
quickly and possess the Slig. Use the Slig to run through the door, and wait for the barriers to open, then shoot the Slogs and be careful not to let them get you or Abe, you should be safe, but when you explode the Slig, be careful not to wake the fleech, trust me!
I hope that helped!