when playing assault of dark Athena campaign, some ledges that you are supposed to be able to climb dont give you the climbing animation, so you cant climb them, I am stuck on trying to climb the ledge that you need to proceed when you are inside the vent. for some reason the character wont do the climb animation so I am stuck and cant continue the game, I even followed a youtube game walk-through to make sure I was supposed to be able to limb that ledge.

so I just figured out that you can press "E" on your keyboard or "Y" on controller to climb ledge without having to jump, I feel stupid now.