A very good start for the Xbox 360.
Being on a next-gen system, CoD 2 definetly won't disappoint. Many snow-filled levels have so many elements and particles flying around, and the frame-rate stays solid throughout. The environments are large and many scripted moments still add to the excitement. The character modeling is quite good, for once people look like people! But... While the modeling is good, the character animation is horrible. They jerk, stand absolutely still; basically they don't have human-like movements.
Sound is very good from most standpoints. Each gun has their specific sound when reloading and, of-course, shooting. I was able to hear shooting around me and I don't even have surround sound! I was most impressed with being able to hear the ricochet of bullets off metal. The music is historically correct and comes at the right moments, mostly when you finish a level.
Gameplay
All the controls for CoD 2 are mapped logically, very easy for anyone to pick-up and go. The left and right bumpers let you throw the gas and frag grenades, and it makes it very easy to do.
The level design can be pretty simple at times, but it definetly isn't repetitive. You won't be following roads, mainly through broken buildings that adds to the "surprise" factor.
Overall
CoD 2 is a must for anyone looking for an intense and thrilling first-person shooter. The story mose is rather short, only about 10-15 hours, but you will remember those hours for the rest of the generation. It is a taste of what will come later for the Xbox 360. If you have a 360, I highly recommend for you to buy it. Xbox-Live is sure to add a lot of replay value to it, but that is when they fix the lag with a fix in the near future.