If you actually had 2000+ hours I doubt you would be reacting like this to being eliminated by a cheater. 2000+ hours and sitting still on a rooftop rummaging through your inventory after a shot, you were asking for trouble and you must have known. Still, I think this could be legit. With the amount of players freely using cheats in the game, and you being at NWAF, it's safe to say that you likely weren't targeted by cheaters. It happened right as you closed your inventory, maybe that has something to do with it. On these roofs, it's not uncommon you can see a player's body who is laying down or unconcious. If he had a friend with a higher vantage point than you then it's even more likely that you were legitamately eliminated.
All things considered, you were in NWAF, and you had a VSD, based on the circumstances on the engagement and evidence of your journey, it's highly unlikely this was the work of a cheater.
Nothing about your second claim really resonates with cheater activity either. Barrels can easily be placed like this to overlap, it's not inorganic for the current engine. Lining them up isn't difficult either. The fences exhibit no irregularities.