About the Hitman 2: Silent Assassin category

Discussion of the Hitman 2: Silent Assassin game.

I seem to have an issue not only the silent assassin challeges but also the sniper assassin challenges. I have all 3 of the hitman games and saved these challenges for last. However out of the 50+ or so challenges I’ve been able to get credit for 10 across all 3 games. Have tried various variations (30+) in recent days and even went to You Tube for help. Used some of the methods from those videos without success. My question is, is there a bug with this or is there something that I’m doing wrong. This is driving crazy.