I expect it might be a nightmare. From what I saw playing the beta, it still has many scripted events as if it were a linear shooter and not an open world. If you didn't approach in a very specific manner, certain enemies didn't render at all from more than 150 meters away which is 'no bueno' in a sniper game.
Without intelligent design compensating for the fact that you could literally approach from multiple angles, I expect a lot of frustration from players.
CD Project Red's first open world outting, Witcher 3, saw compromises for this by putting loot in every possible nook and cranny (not to mention a long list of bugs, crashes, etc).
Good luck with a stealthy sniper game from developers that lack crisp writing and technical know-how to compensate. Looking to the history books, any dev team's first open world outting is a gamble.
I liked the crafting / drone play, and the general idea with tracking and so on, so I really hope it turns out all right. I followed many of the dev's replies in forums and I really got a sense that they're learning as they go (at least on the PC side of things), so take that however you like. Good feedback and listening to their fans is a plus as long as its not a design by committee.
If there's enough there, support them with a purchase, so the next one can be even better (not interested in WW2 sniping).