ill post this again. everyone saying cod5 is going to be shitty because its made by another company is wrong. 1,3 were made by activision, 2,4 by infinity ward, but the companies merged after 4 was released and are now the same company, therefore the company that made 4, is the same as 5, and 6, but they started design before the merge. the graphics engine is the same in 4 and 5 and they didnt make any huge changes. it will be better gameplay, obv diff weapons (which imo ww2 is much better and takes more skill), and better matchmaking (like halo does it, where ranks about the same play eachother).
one thing i hope they change is when you focus on the enemy, if they walk by it follows them for a bit. its so annoying and i hope they take it away.
cod5 is out nov 11th, and cod6 has said to be released spring 09 but it will prolly get delayed until atleast summer.