Every game in the World of Assassination trilogy should be played on HITMAN 3. If you own HITMAN 2 on Steam, the locations you can visit in that game will be transformed into a ‘Access Pass’ for HITMAN 3 when you purchase the most recent game. From the first time you load the game, the Access Pass DLCs will be applied to your account, and the places will be unlocked and ready to play.
A few things I have learned playing Freelancer. Tips and Tricks for Freelancer Mode