Strong sniping game backed by solid over all gunplay and stealth.
The open world is an afterthought as the game really plays as of it was linear in it's pacing, (CI Games smartly went the sandboxed level route with their "Contracts" sequels also allowing you to replay them too!), but the "Points of Interests" do make up for this. Playing it on the hardest difficulty is recommended.
Overall a solid game, although it still has performance issues.