Call Of Duty: Modern Warfare 2 or MW2 to fans is a FPS for PS3, Xbox360 and PC, which was released on 10th November 2009.
Please be warned there may be spoilers below.
The game sees you play as a range of different soldiers through the game in a variety of locations across 18 levels. There is also a reunion of sorts with an old ally.
Aswell as a shortish Single Player Campaign, the game also includes the standard 8vs8 Multiplayer modes that you would expect and also a set of Spec Ops missions which can be played solo, or cooperatively split screen on 1 machine or online.
Each Spec Ops mission has 3 levels of “completion” and completing each awards a star, stars are then used to unlock new levels of Spec Ops and also Trophies/Achievements.
There are 23 Spec Ops missions over 5 categories which increase in difficulty. Each mission has 3 stars assigned to it depending on various factors ie difficulty, length of time taken etc of each mission making a total of 69 attainable stars. All missions can be played with 2 players but some require 2 players to complete therefore requiring a friend either on the same machine or online.
There are certain Trophies and Achievements awarded for meeting different totals of stars and other criteria, for more information see the Trophies page.
Sniper Roost on High Rise http://www.gamesradar.com/f/modern-warfare-2s-coolest-easter-eggs/a-20091113114526165023/p-3
Total Trophies: 51
Platinum Trophies: 1
Gold Trophies: 2
Silver Trophies: 10
Bronze Trophies: 38
As you can see there is a nice spread of Trophies in this game.