https://wccftech.com/hitman-3-offline-mod-pc/

Hitman 3 released last week across all platforms and already there’s a Hitman 3 offline mod for PC that makes online missions accessible offline.

Like previous Hitman installments, Hitman 3 requires an internet connection to track your progress and receive certain unlocks. For those who want to access online missions but don’t want to have to rely on an internet connection, modder ‘Jason’ has created an offline missions mod for the game. In addition to making online missions playable offline, this mod also makes seasonal content from Hitman 2 and sniper missions available offline.