Call of Duty is a name that has found its place in the gaming world as one of the all-time most popular FPS (first person shooters). This is the third game on the Modern Warfare line, but the eighth game on the Call of Duty title as a whole. The game definitely has a more realistic approach to the first person shooting genre than some of the other competitors out there (ie., the Halo series). The weapons, vehicles, and scenery all give the player a sense of warfare that is reminiscent to that of real life combat.
Now for the Gameplay.
There are two modes of gameplay in Call of Duty: Modern Warfare 3, single-player campaign and multi-player. Single-player campaigns in Call of Duty are notorious for being short, albeit exciting. Modern Warfare 3 is no exception. You'll control a war hero who guides a team through a rain of bullets and explosives fired from masses of terrorists. Your team may die in the process, but most of the time it doesn't effect your primary objective: keep yourself alive. You'll use a host of different weaponry: snipers, sub-machine guns, and rocket launchers to kill off the enemies. The end result in many of the campaign missions is the player reaching the objective as the sole survivor after a series of bloody battles. The campaign as a whole is very interactive and fast paced, and usually takes about six to seven hours to complete.
The multi-player, on the other hand, is endless. Ever since online multi-player was added to the Call of Duty series, the game started selling big. Many owners of the game neglect the campaign, and bought the game for the sole reason of enjoying the multi-player experience. You'll start out on multi-player with just a few weapons with new ones becoming available as you gain experience through victories and kills. One of the huge draws to the multi-player mode is the ability for the player to customize a series of classes that he/she can choose from to engage in online battles. The class system allows you to choose weapons, gear, and perks that you'll spawn with. There are nearly endless possibilities for customization.
The killstreak system in multi-player got a total re-haul from Modern Warfare 2. Instead of the traditional "get rewards for your kills" system, Modern Warfare 3 breaks it down into three different modes: assault, support, and specialist. The assault follows the same routine as the original system and rewards you by kill count. The support mode tallies up actions and kills between lives and bestows you rewards that benefit the team as a whole, like the UAV. The specialist stands unique in that the rewards are not guns or UAV's, but the player becomes faster, stronger and bullets deal more damage.
Overall, the game is a great buy. The campaign is short, but the multi-player more than compensates for that. The player will play endless hours of online battles all the while gaining upgrades and abilities that make it feel completely satisfying and worthwhile.