If you loved Call of Duty, you'll love the expansion!
User Rating: 9.6 | Call of Duty: United Offensive PC
This Blew me away! There wasn't very much hype about it untill about a week before its release, but I have to say this is a truely amazing Expansion. The game takes you strait into the action of WW II, keeping the same addicting gameplay, but adding alittle more...like Vehicles! You can play 3 different campains, russian, american, and british, which each come new weapons and unique vehicles. Each force has the newly added portable machine guns, which can be only fired if in prone, and the occasional hidden flame thrower. The american campain starts you off in the game with the battle of the bulge, and the famous battle at foy. The russian campain leaves you stuck in the biggest battle in history, Kursk, while the british take you over the skies of germany. United Offensive gives you amazing single player campains, but thats not all! They have brought back the hardcore multiplayer, but with very big new maps and vehicles. There are 11 new multiplayer maps including the battle at foy, kursk, and Kharkov. You are also able to use new weapons in mulplayer such as portable machine guns and new rifles. New modes include Domination, players must capture all areas located on a map, Base Assualt, player must sucessfully capture and / or destroy enemy base, and Capture the flag, in which players must capture enemy flag and bring it back to thier own base. Over all Call of Duty: United Offensive is and amazing game which im giving a 9.6. 
