I just made it after 3 hours of trying. I never exptected it so be so "easy". I always imagined it will take me weeks of dedication.
Thanks to LoAlexandria for upping these times here. It encouraged me to actually try it.
It is far from impossible for xbox users to get it
Btw. I did it on advanced traning 1-1. New time is 45"100
EDIT: @LoAlexandria I used your updated times here:http://www.trueachievements.com/a617...m?showguides=1
I hope that this isn't a problem for you as I only wanted more people to actually try it