I've completed Sniper Elite V2 and now Sniper Elite 3 campaigns and additional game components, gathered all of SE3's collectables and optional objectives, completed the campaign stealthy, silently, tried guns blazing only to be swarmed by the enemy AI like bees to honey. There are 8 missions in Sniper Elite 3 that can be done single player or co-op, plus additional challenges and missions that can be downloaded at a cost. If you like sniper-based games you've probably bought this by now as I have. It's not a first person like the last 2 sniper elite games. This particular game is so bad of a third person shooter it's not even funny.
No attempt whatsoever to make a decent cover system, seeing as this is a “third person shooter” when not aiming down the scope, has even been bothered to be so it is clunky as hell! Try pressing “A” to “mount turret” instead of “vault” and you'll “vault” that's how badly awkward it is! You don't stand a chance without your sniper rifle because the submachine guns alerts everyone obvious cause its a sniper/go silent game, your welrod has bugger all bullets and your constantly searching for ammo.
I finished the game, on sniper elite difficulty but its gonna be awhile til I can be bothered to play on authentic difficulty… finished the game at 96% complete.