Note that Breakpoint offers an incredible selection of firearms for you to choose from, and your personal long-range go-to may differ from ours. Here are a few we think should do the trick:
Naturally, you're going to want to have weapons that can kill at long-range. If you get detected, you'll have to start over. The problem lies in the fact that you'll need to clear a number of enemy outposts to complete this objective, so you need to stay on your toes for a while.
Make sure that other enemies don't see your kills and bodies, and you should be clear to continue. Once you know what you're up against, just start picking off stragglers. While you can scope things out with your drone - and should - it's always good to have experience with the layout of the level.
To get through this particular challenge, load into a Bivouac that's close to an enemy encampment that you're preferably well-acquainted with.
