I haven't seen anyone mention this before, so I'm going to point it out. If you've played through the game before, then you're likely aware of an event where they drop some kind of gun outside the base, which you can... Kinda use. However, out of curiosity, I decided to take it to the treehouse, which would influence the rep positively by 12 points or so, which is quite a bit from what I've gotten so far.