The influence of Call of Duty as a franchise is undeniable in the industry of cinematic FPS gaming, yet unlike the first in the series, this time historical accuracy is not the main concern, hence new characters set foot on the battle-field pushing the boundaries of what military games are willing to show. With Moder Warfare 2, Infinity Ward has really exceeded expectations by adding more multi-player modes and other features, thus making this game one of the biggest selling games of all time.
Although many of the Modern Warfare fans will be interested in the amazing multi-player, there's also a co-op mode and a single-player campaign, so no one is left out.
To get an glimpse of how the engine improved, you should try the campaign, where the action scenes take place from either Rio d
e Janeiro, Kazakhstan, Afghanistan, and other unexpected locales. Of course, graphic-wise there's little to complain about the new installment, the weather effects, destructible objects and such make for some interesting "eye-candy". The sounds and effects can't be ignored either, as you'll soon find out early in the game leading to the conclusion that Infinity Ward knew they were going to top the pre-quell Call of Duty 4.
With increased visual and sound effects come upped production values that translate in a shorter single-player campaign that some might complain about, yet the since the enemy AI has been improved, fighting for every checkpoint still has the same sting as the original. As you lose health, the visual effect that involves blood splatters on the screen has been somewhat changed, to add to the realism of the game and it could become an issue depending on the difficulty you chose.
Even if the friendly AI might get in your way from time to time, enemy spawns are no longer infinite and there's always a way-point icon on-screen showing you where to go or who to follow and with pros and cons, I'd have to say Call of Duty - Modern Warfare 2 makes for better gaming experience, surpassing the original.