Here is my 100% Achievement guide.
This is just a text guide.
So it will have all 6 playthroughs and what choices you need to make to get every achievement and if you want.. every single ending to the game too (although that's not necessary for an achievement)
Hope this helps!
2 Misc Achievements - 1:30
Playthrough 1 - 2:30
Playthrough 2 - 3:30
Playthrough 3 - 4:30
Playthrough 4 - 5:30
Playthrough 5 - 6:30
Playthrough 6 - 7:30