i fought the end and got his camo, then he stun-naded me and ran off. after that, i started to shoot him (for the first time) with my mk 22. i did not find the mosin nagant... where is it? --- You all hate me dont u? i post here and ill wach as you continue to shun me.
If you beat him by reducing his stamina gauge, the Mosin should be where he dies, just at the bottom of the little slope which takes you up to the higher level. There should be a goat at the top of that slope, if that helps.