I have found a game breaking glitch! I will try to explain it the best i can. Okay, Do You know area with the mp5k that leads to power?
well the if you run and jump of the jump pad (Not Using the jump pad but jumping while on it) if you run and jump over while rubbing up against the tunnel, sometimes if you hit the right bar thingy and prone you will be glitched inside of it, because there are no path nodes to this glitch (not telling you to put some there xD) they will just stand still in certain spots. If you really would like me to I can try to get a screenshot, I really love this map and I would not want to see others exploiting this spot! 
~Qiller0Doom