Wow nice work, alot of videos. I personally didn't need a video guide, the first few levels i followed one, but after a while it just took me too long. If you know the levels good and you played them atleast once (the more the better), you can just try and go to every freakin corner in every level, leave no stone unturned, collect everything. I got it on my first try and it unlocked in the level caves, after i walked through the caves and broke a door into a bathroom. Damn I was so happy at this point because i read several comments saying they unlocked it earlier.
I had a chance to kill the best, but then I remebered suicide is a sin.
Red Dead Redemption (all DLC except free coop stuff)
Splinter Cell: Blacklist (Multiplayer)
Borderlands 2 (no DLC)
Ghost Recon: Future Soldier (no DLC)
Assassins Creed: Revelations (no DLC)
Contact me if you want to boost any of the above games.