[*PS360*]

so yeasterday i joined a story coop game and when i got into the game my partner was just sitting in the corner and leting the other bot to kill the enemies and getting 5 XP pointes everytime. I joined in and started to make up close shot for 10 XP and 3 +. I did this and went up almost 3 ranks which is crazy cause it would have took me like a year to do that playin the game without the glitch. I took pics of me upgrading my ranks its on my cell. I wanna know how i can go back to that level and do that myself, does anyone know how?????