If you want the "online experience" (scoring, challenges, and actual progression) while technically being offline or on a private network, use the Peacock Project.
Visit the official IO Interactive Progression Portal to link your accounts and transfer your mastery levels. hitman 3 unlock everything offline
To unlock all levels, missions, and content, we'll use a combination of in-game progression and a few tweaks: If you want the "online experience" (scoring, challenges,