anything that helps is absolutely welcome. I was staring at the one in Choking Grounds thinking WTF? I knew how to get into the building, but I didn't think to pull myself up using the chain onto the "vines" even though I have done it a number of times before in different areas. If it isn't blatantly obvious in the game, there will be questions. Glancing at the guide made me feel like an idiot, but it helped.