Call of Duty 4: Modern Warfare
Call of Duty 4: Modern Warfare is the first installment of Activision's series to be set in the modern era. It combines a short but fast paced campaign that never keeps you waiting with online multi-player that is nearly perfect.
In the campaign you play as either a soldier in the British S.A.S. fighting to stop Russian Ultranationalists from taking over the country or as a US marine fighting in the middle east to stop an extremist from rising to power. It is on the short side, (It took me a bout 8 or so hours to finish) but on the highest difficulty setting it can get a pretty tough and frustrating. However the game feels different than other modern warfare games because of the fact that the end of the campaign doesn't really leave the world as a better place and in a way sets in up for a sequal.
The online multiplayer is a magnificant work of art, basically you have 5 custom slots of which you can edit however you want, choosing your gun, side-arm, perks and weapon attachments. The ranking system is also extremely well balanced, basically you earn experience from kills, completing challenges and match bonuses at the end of a match. You use this experience to rank up from 1-55 unlocking new challenges, guns, etc. But the catch is that once you hit the maximum rank of 55 you can choose to start all over in the prestige mode and do this up to 10 times. It really is a system that more games should look at and realize how well it really works.
In conclusion Call of Duty 4 is a game that any fan of a shooter should player no matter what. I strongly recommend this game.