alright so i figure I should elaborate. None of the fixes on any forum out there from the last four years has worked for me. windowed, run as admin, change physx to false, e.t.c. anything out there still crash the game but it's odd cause if i leave the error up long enough the loading just continues until it hits the press anything to continue screen, but even then if i exit out of the error the whole thing shuts down. I recorded it here
I was practicing the run and then this happened out of nowhere. I really want to run this game and I don't know where else to turn as nothing else I posted got any attention. Any help is appreciated.

http://imgur.com/gallery/HLaGw
I get this error message at start up each time since today. Any ideas?

Update: After a few restarts of the game I ended up getting speed cripple third try! Thank you for the help and hell maybe soon you might even see a run from me on the board

Thanks a ton man, I appreciate it a whole lot!

Alright, since I've been trying a good twenty minutes with no luck I recorded about 40 secs of what my attempts have generally been looking like

Ahh alrighty, many thanks! If i keep up not being able to get it I'll post a video.

Alright, so I'm using the rocket launcher set up in front of the megaton door (Thanks, petite_miku for the guide) and I'm getting consistent results in achieving the cripple without being truly crippled. I come out of the quick load with the crippled foot step sound and animation but for some odd reason I gain very very little to no speed each time. Am I doing anything wrong to achieve this or am I the victim of my game bugging out? I run the game vanilla and the only changes is I used the multicore processor fix. Many thanks to anyone who may help!