Infinity Ward Recycles Buildings on MW3 Straight From Cod4

Finallevel: After a little gameplay on the new call of duty modern warfare 3 I discover that not everything in this game has been made from scratch, is this how Activision make it so easy to pump out a new game every single year?

Whilst I don’t think it’s a bad thing to do this in a game I found it quite humorous that they would make it just so obvious.