MAG

You'll need to get three different ribbons in order to earn this trophy. Each ribbon requires you to blow up two mortar batteries, two sensor arrays and one anti-air artillery in one round. Getting the Mortar Demolition and the Total Blackout ribbons will be easy, by using the Precision Strike when being a Platoon Leader. The Precision Strike can be used every 5 minutes.

The Triple-A ribbon was hard to earn before 1.06. You can't destroy AAAs with a Precision Strike since the bomber will get blown up (even if in your zone, the AAA is down). You'll need to get them on foot. However you only need to destroy one anti-air battery to get the ribbon (instead of 3 before 1.06), and to get one you'll need some stealth equipment like motion sensor and sensor jammer.

For further information: see Ribbon guide (#12, #14, #25).