Kill an enemy 200m away (7)

Easiest done if you snipe an enemy although you can take out a tank/helicopter with a rocket launcher at a far distance. I did this on Chapter 4: when you are suppose to take out the AA guns, if you have the sniper with the sniper scope from the previous ending of the last chapter (where you fight the Korean nanosuits for the first time) snipe from the ledge before you drop down into the water to get to the AA guns to score this trophy easily. I sniped someone on the boat patrolling the waters. The sniper scope does show the distance you are zoomed in on when you ADS.