prologue: i hate the thieves guild quest just for that one game breaking moment when karliah says she'll unlock the gate and you can take nocturnal's oath, and she just walks away, (back to snowveil sanctum for some damn reason).
surprisingly, no one made a fix for this?!?!?

well i did!
NO MORE USING CONSOLE COMMANDS TO BREAK YOUR GAME EXPERIENCE!!!!

the fix is simple: it gets rid of the gate, the lever, changes karliah's dialogue  at the end since there is no gate for her to open (i used her voice, so dont worry all you immersive people out there), forces her to go into the damned location and the quest moves along smoothly!

tell me if you have any bugs with this mod. i use the unofficial patches, all dlcs, no problems at all i noticed.