Great Game , Don't listen to what others say , Try it out yourself...
Lots of cool classes and upgrades.. You can design your character how you see fit.. The different levels have something new and exciting for every oppurtunity you get.. COD MW2, Black ops .. MOve over this one is a winner.
I like the way you can change classes at command post during a game session, and complete all the other objectives. For instance I was playing a soldier, when i got to the the objective none of my team mates made it to the goal that needed to be hacked i sat there and defended the area no one got close . when i respawned i changed to operative at command post and hack the objective and a medic support me and 2 soldiers defended the area off. We won the objective , then i changed back to soldier.