This page contains Call Of Duty: Modern Warfare 3 Hints for Xbox 360 called "Birdie achievement guide" and has been posted or updated on Nov 3, 2012 by nhocmap249. Let us know what you think of this Hint by thumbs voting.
Birdie achievement guide
In Special Ops Survival mode on the "Carbon" card is the best place to "Birdie" achievement to get, You can do this by 10 claymores and a turret to buy. You have $ 10,000 or more in round 5. Go to the crate air support in the building, and secure the area with your turret and claymores before the start of round six. Then you start Round six and Predator missiles to use the helicopters ($ 2,500 per missile) to blow. Make sure the enemy can not see by hiding yourself in the cover. After the shooting of the two helicopter as long as you did not damage any of the lap.
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