3. Estate (Modern Warfare 2)
If Carrier was unbalanced, Estate is in an entirely different league. Every match started and ended the same - one team controlling the mansion atop that dreaded hill. The mansion is so easy to hold down, it's almost impossible to be overrun. If only Infinity Ward had created a myriad of dimly lit tunnels that ran under the mansion, this map could have been a classic. Instead we're left with a map split into two, consisting of the mansion and an entire area at the bottom which is rendered pointless - unless you want to snipe, that is. Never has there been a more unbalanced map. Oh wait...