For me.... the first play through I kind of derped it up alot lol and I was playing it on my laptop which failsauced on me.
The second play through I think I got like 75% through and kinda just lost interest and never got back to it... I was playing it on my older gaming desktop and I think I wound up reformatting it.
Both times I remember getting the sniper dude to team up with me and then we went and murdered all the dudes who.... IIRC.... murdered his wife?
Idk I was just happy to have a sniper friend lol.
I am one of those players which tries do do everythign in one run through, which is super shitty way to play FO because well... it's impossible, things you do shut off other storylines and make them uncompletable, which is another thing that makes it so great and lets you run through it over and over and have a different experience. I think that's why I love it so much you can literally start the game exactly the same way and do the same thing for an hour, but the second you turn right instead of left, everything can change.
I was on PS3, I'm sure it would have been better on PC as the patches did more but I pre-ordered and the day one patch was like 2 gig or something and still completely fucked my game, it just never played right and I swear it screwed up my PS3 hard drive somehow. Never was quite the same till I swapped it out.
Yeah, the sniper dude who was in the dinosaur right? I got him too, loved it. went and slaughtered the group in the mountains that had huts and shit I think. I would play through stuff one way decide if I like it and then go back to my save point and do it over a different way till I liked it. Maybe that's cheating but meh... I don't think I ever actually finished the game because it finally broke down at the end part with Ceasar.