Now that Hitman 3 is out, it has replaced the tabs that Hitman 2 used to take up on the store page, meaning that you can no longer import the Hitman 1 levels into Hitman 2 without paying the extra money. I am just getting around to trying to import the levels and it seems impossible to get it for free.
Have a look in your store (steam, xbox or psstore) and see if Hitman 1 can be redeemed through this process. Before making anything, look at the price. Maybe it will be “0” or “free”.
I don’t know if it could work. Just a thought.