When you're level 50 and going to prestige, it is almost certain that you'll have loads of CoD points, and therefore you buy all emblems, layers and such, all the things that you don't loose. But those last ones? Keep 10 000 cod points, and you'll be able to start out with 30 000 in the next prestige. Here's how:
1. Be ready to prestige
2. Enter a "High Roller" wager match
3. When the map is locked, prestige, the game has taken the buy-in
4. Be "In the money"
When you're done with the game, you're a prestige level one, but you start out with all the money you won in the wager match