What Will Be Your Professional Level?

What will be your Professional level?
Kotaku has detailed the five different difficulty levels that Hitman: Absolution will have, do bear in mind though that these are from a preview build and thus could be different in the final launch version.
The difficulties are as followed:
Enhanced: Easy
Supreme training and a physique enhanced beyond ordinary human capacity mean that your enemies are no match for you. By cunning or by brute force, you are unstoppable.
- Players can activate additional checkpoints
- Instinct regenerates
- Instinct will provide hints
- Enemies react more slowly than normal
Enhanced: Medium
You can rely on Agent 47's superior training and instinct. Remaining completely unnoticed can be a challenge, but you can always rely on your guns to get you out of trouble.
- Players can activate additional checkpoints
- Instinct does not regenerate
- Instinct will provide hints
- Normal enemy presence with normal reaction times
Professional: Hard
You like a challenge and your enemies will provide you with just that. They will be more numerous and with faster reactions. Evading your enemies will be difficult and you must strike with flawless timing.
- Players can activate additional checkpoints
- Instinct depletes when used and does not regenerate
- No instinct hints
- Additional enemies with improved reaction time
Professional: Expert
You fight for every inch of progress, often without firing a single bullet. You don't rely on any help and accept trying many times before reaching your target...and perfection.
- No player-activated checkpoints
- Instinct depletes when used and does not regenerate
- No instinct hints
- Maximum number of enemies with fastest reaction
Professional: Purist
This is a challenge for a true perfectionist. You know every rule, every detail, and all environments by heart. Even then you will die trying.
- No Help
- No guides
- No Interface
- Only a crosshair
So, what mode will your first playthrough be on Hitman: Absolution when the assassination begins on November 20th?