I have completed all Missions (including DLC) of Sniper Elite 5 with the highest ranking. I think that's as much as I can get out of it without touching the Multiplayer side at all, so I am ready to put it down and give my thoughts.
On the whole, I enjoyed myself a lot. It's a very simple formula - you run around in a variety of sandboxes and are given a series of tasks to complete, but when it works it works. My biggest criticisms would be the wonkiness of the enemy AI sometimes and the fact that around half of the items such as TNT and the Decoy are completely useless. I also would have liked there to be some kind of incentive to doing a pacifist run as there is no real reason for using the non-lethal ammo.
Cautiously interested in the next game in the series coming out next month.