Look for Short Cuts for Hitman 3

Look for Short Cuts

A new feature introduced to Hitman 3 are shortcuts that allow you to travel through different parts of the map, so you can reach a mission-related location faster and easier. Make sure on your first run on any mission you keep an eye out for a crowbar, there will always be a crowbar on the map, and it will be needed to unlock the shortcut. Alternately, you can take a crowbar with you on a mission if you have it in your 'permanent' inventory.

Shortcuts are easy to spot, they are marked by giant yellow bars on a door or ladder. All you need to do when you find one is crack it open with your crowbar. Doing so will create a permanent shortcut through the map which will come in useful for replaying missions to complete other assassination variants.