Hitman Absolution HD OPERATION SLEDGEHAMMER + 7 challenges Outgunned

From a fresh start with nothing unlocked. The goal is to complete the game on 'Hard' difficulty under the 'Professional' umbrella for the 'Absolution' achievement. Picking up all possible challenges and achievements in a single run. Challenges Completed in this run- 'Evidence Collector', X1.Straight ahead from the middle steps is an agency vehicle. There are 2 boxes stacked. On top is the evidence. 'Chameleon', X1. Light trooper armour. 'Infiltrator' for not getting spotted. 'Surgical Precision' part one for getting 3 headshots. 'Surgical Precision' part two for getting a further 5 headshots. No 'Infiltrator' when doing this. 'Surgical Precision' part three for getting a further 7 headshots in 2 mins. I get the requirements for this, but only unlock part two. You can just restart the checkpoint and get part three. 'Information is power' achievement for collecting all evidence.