so i was doing that thing to prestige in combat training, and my dumbass friend switched it to player match just before i hit enter prestige in combat training, so it reset my rank.
and yeah i just got **** over though by my friend.

but to do it:

Same as you would normally prestige in combat training, but tell them to stop at the "enter prestige" button or whatever it is and then switch over to player match really fast, hopefully without them noticing you switched, and then have them prestige. then boom. level 1 same prestige.

oh yeah, my friend didnt even mean to do this either.

edit: Sticky, question mark?