I like this game very much and I tried to use similar mechanics in my Dancing with Demons. I really think that if a feat is that difficult, maybe there should be a mechanism to cheat, so that you can see what happens. I really have to consider it when the time comes for my next work.
I think that just by finishing the game once, one should be able to get a guide on how to get to some achievements. Hm, maybe I should tag @Cataphrak, just in case.
To be honest, I have nothing against having Hawkins as a friend and Fatima Asadi as a romantic partner, I like her fire.