The mapMonkeys were invited to Infinity Ward and posted a quick tour. (Btw, possibly new multiplayer info tomorrow!)
Just to get it out of the way: "worst... tour.... EVER" but we love the mapMonkeys for posting it on Facebook »!
The mapMonkeys crew are pro-glitchers and were invited into the Infinity Ward HQ to debug and help find exploits before the game is beyond the point of repair. They didn't get paid for it, but all expenses were covered by Infinity Ward (sweet deal!). Thanks glory gunz » for the heads-up.