MAG

You'll have to destroy 5 helicopters, which can be done easiest when you're defending on a map. Destroying vehicles can prove to be tough however. Your best friend to get this trophy is the Guided Artillery, available when you are a Squad Leader. The Guided Artillery can blow up any vehicle, including helicopters. When the triple-A of your area is down, you should see a helicopter approach on the map. (Be careful as in some areas there will be airdrops rather than choppers). Unleash all your fury on it, and you'll take it down easily. Repeat this five times to get the trophy.