Okay update : YAY! I just finished the game and WOW!
First of all, thank you for answering so quick! It definately helped.
The who's who section was a bit tricky but since it was not mendatory, I don't have anything else to say about it ahaha. I've had maybe one or two instances where one or two contacts appeared/disappeared but it was a minor issue since you can quiclky get them back.
Thanks again for the game, amazing story and cool plot twists!