If we were given 10x, scopes to use instead of the T5Xi. A very ineffective way to play and still have fun being a sniper. Then proceed to walk backwards, until you reach the desired distance you want to kill the target at. To engage targets greater than 600 meter. you can see the targets, but the power of the scope is way under, what the rifles can shoot at in the game.
As most players have already realized, there is an issue with sniping targets at distances greater than 600 meters.
A lot of those were done with the various sniper rifles and scopes, we are given in the game to use. With 4500 kills, so far to date in Ghost Recon Wildlands.