Activision is kicking off a massive Double XP weekend this weekend for both Modern Warfare 2 and Black Ops.
It's a good way to send off your old favorites before Modern Warfare 3 launches in two weeks time, but there's another point to all this.
As Activision explains: "Every time you prestige in MW3, you'll receive a prestige token. Use it to unlock rewards like double XP for a limited time, an extra custom class, or choose one piece of gear from your custom class to keep unlocked from rank 1 of future prestiges."
As a bonus, everyone who's prestiged in MW1 and 2, World at War and Black Ops will get bonus tokens instantly at launch, allowing them to start unlocking stuff instantly ahead of everyone else.
So if you're not already knee-deep in Battlefield 3, this weekend's double XP run is your best chance to earn some extra prestige tokens for MW3.