Not the most tactical game of it's genre, but a fun game none the less.
User Rating: 8 | Call of Duty: Modern Warfare 2 X360
If you're looking for a realistic shooter where you have to use tactics to maneuver down roads and use stealth to avoid detection, you're at the wrong spot. This game is what us veteran gamers like to call "Run & Gun" games. While the game has a wonderful multiplayer, the single player is awful (as all CoD games). For example, you're in a firefight with the enemy in a trench and it seems like you've been sitting there for 10 minutes (you probably have been) but as soon as you run forward the enemy disappears.... sound familiar CoD players? What they do is add a place marker or "trigger" on the map so when you get to that point the enemy stops spawning there. While it is a relief, how realistic is that? The multiplayer on the other hand is very fun, while it too is far from realism it definitely helps kill time and burn off some steam. If it indeed is "Modern Warfare" I guarantee you would not see trained US soldiers running--- no... sprinting towards the enemy by themselves. Sure it's fun pwning people that way but not for very long. In short, if you're looking for a decent game with a lot of replay value, get this game.. however; if you're looking for a game that involves strategic thinking, may I suggest any Battlefield game..? Good luck and happy hunting! 
