More leaks.

[Fez]

Nope, Modernwarfare 2 uses IF's new "IW 4.0" engine, whereas COD4 uses an older IW engine

Wiki never lies

"The developer has stated that the game's proprietary IW 4.0 game engine is an improvement over the engine used in its previous game."

[Luke]

Wiki never lies

"The developer has stated that the game's proprietary IW 4.0 game engine is an improvement over the engine used in its previous game."

It says its an improvment over the engine used in it's previous game.

Does't say its the same..

[Fez]

It says its an improvment over the engine used in it's previous game.

Does't say its the same..

[Neil]

It says its an improvment over the engine used in it's previous game.

Does't say its the same..

.... The facepalm image is perfect for this post, it's the same engine, they just updated if for CoD4, like Treyarch did for CoD5, it's still the engine CoD4 and 5 used, they said this ages ago, it is CoD4 with different guns and a new campaign, I'll get Borderlands over this anyday.