The only bad thing about this game is the new matchmaking process.... but ITS AMAZING UNBELIEVABLE! especially Campaign!
Gameplay: Gameplay is pretty much the same but some weapons have a different feeling to them for example the sniper, 2 to 3 special shots actually brings down the enemy but then he's all urs however u want to execute the enemy is totally up to u. Punch him to death (one of my favorites), STEP ON HIS FACE which is much more BRutal than GoW 1's Step. Holding him hostage which is pretty useful when u have several enemies vs. u. and Kill him which the weapon in hand. Some new weapons such as the Lancer became really good and powerful, stopping Power helps it stand up to other weapons. Other weapons like Boomshield and Scorcher are a great addiction to the weapons library.
Sound Effects: They are just amazing, the lancer's sound effects are pretty cool and every weapon has their perfect sound.
OVERALL: 10/10!!!!! WE ALL GOT WHAT WE WANTED although the matchmaking is like Halo 3's Matchmaking in which they find u the teammates and the opposing team which wastes time. I don't really know why they just made it like GoW 1 in which u just get in a match and play but still GoW 2 is one of the best games and 9/10 is PURE Bull****