Fiiiiinally reached level 50!! You need 3 million XP which for me was a good thing (meant more gameplay) but sadly, for you achievement hunters, it took me just under 60 hours of regular gameplay with no XP farming or glitches to unlock. It took about 3 full playthoughs while doing nearly everything.
I'm sure that in co-op, starting with high leveled friends, this would be attained much faster. But without the net, I had to do it this way
123,456 Gamerscore unlocked at 12:34:56am on 7/8/9
People that write guides without a roadmap... Why do you even exist?! Write a damn roadmap!!!