I know all of you are farther along than I am right now, but can I just say the first "fight" with Sahelanthropus after you secure Emmerich and you have to sneak back onto the chopper.
I nearly pissed my pants making my way back.
Jesus loving Christ. It wasn't particularly terrifying on the surface but I just was able to feel the scale of the damn thing as it lumbered behind me and roared and stuff.
This game, man. This loving game.