Throwing the Drone Strike Marker into a danger zone is handy, but here is how you get the drone strike.
When you start off the game and you are in contact with DOGHOUSE you will have access to Drone Strikes. However, very soon into the game you will loose contact and will therefore loose your ability.
There are two locations for drones, and from what i have read on the web will sometime be either a drone strike or a drone recon (you get one of each)
1. NORTH on the highway turn off. For me this was my first and was a recon.
2. EAST city area OFF the highway behind the supermarket. This was my drone strike.
Link to a picture - NOT MINE so if the link is broken use the text.
http://www.directupload.net/file/d/3640/ifc729vh_jpg.htmAssuming you get the recon before you get the strike, I would suggest doing the Eastern Supermarket first.
Then you can go back to your base and toss it over the green gate on the left of your base (as stated in other solutions). There is a danger zone back there (if you run through it like I did (stupidly at night!))
There really is no reason for the high ratio of this achievement.