Sorry If i dont make sense at somepoints Please just understand as best you can (ENGLISH ISNT A STRONG POINT)

Gameplay will always be the same If the same company creates the game for example infinity Ward created COD 4, MW2, and MW3 so they will have the same Gameplay features and graphics.

MW3 looks the same in Graphic However the gameplay itself is totally different because they have changed the way you have to work (Kill Confirmed Mode(STOPS CAMPERS)

the Killstreaks have been changed so that if you have a certain strike package Only the Killstreak within in that strike package can be used and it stops the ability to use others for example i believe that the AC130 and the chopper gunner will be separated also the kill streaks stay close to you NOT circling the map which is fair for both team mostly because the enemy team have the ability to pin point you on the map BUT the Kill Streak can kill them before they find you.

The Guns have been given a levelling up system which helps you the more you rank up for example you get to level 20 and the recoil on you gun starts to lower.

ALSO infinity Ward have been listening to some people of the community because they have changed nearly everything

ANDDDDDDDDD the explosion damage has also been reduced so that they is not to much Nube tubing

Leave you opinions and DONT HATE BECAUSE IT GETS BORING

Update: if you believe that Modern Warfare 3 is going to be the same then you need to do your research on the game because its totally different