What did you change in your config files or ingame via the console like min/max frame rate and modifying sound classes? For example I read that somebody edited his sound settings so he could hear the assassin's steps clearly.
Sounds like someone's fishing for exploit instructions. As long as your sounds not on low you should be able to hear the assassin's cloak quite clearly anyway. Keep a finger over your slam/charge/death blossom/grapple key boys!
I'm actually working on an application to edit the config files safely and want to see what other people do, so I can include that.
I used in-game console commands to set bSmoothFramerate and MaxSmoothedFramerate, but I haven't looked for which config files they got saved to..