Long Distance RelationshipG 20

An easy way you can unlock this achievement early on in the game is during the mission "Recovery". Early on in the mission you'll be ordered to head to the town hall and school to rescue a hostage. Continue along the roadway but be careful, there will be a few enemies along the way. You will have a vehicle at your disposal that will help with the first few. A little further along you'll be able to see that the road is blocked off. If you do just a vehicle is recommend ditching it before you get close and continuing on foot. At the road blockage there will be about 5 or 6 enemies and 2 mounted guns. Just continue along the left side of the road closest to the beach. Use your closing to get as close as you can. There will be a guard rail and bushes along the side of the road to cover you when you need to duck and recharge your cloaking. Get as close as you can and take the enemies out however you see fit. In this area you'll find the missile launcher for the first time in the game. Grab it and continue along the road a few hundred feet until you see the town hall and abandoned school in the distance. A good point to stop is as soon as you hear over the radio "Nomad, looks like the KP have set up HQ at the town hall next to the school. We need to find that hostage. Recon the building for any signs of the contacts whereabouts." Once you hear this message stop and simply aim your missile launcher at the school and shoot. It's well over 200m so you'll definitely unlock the achievement. I posted a video below showing how I unlocked it. I was able to get an accurate hit on the third shot. Don't shoot at the building I did on my first shot, noones in it. My second shot was aimed too close to the dirt hill so the missile went off course. Third shot was good. There is actually 2 missile launchers so you will have up to 6 shots which is more than enough even if you mess up.