Karmaroo

Yup. If you want to carry the M4 and the Rifle, you need to hold one in your hand. Every time you drink, climb a ladder or essentially use your hands, your rifle will fall to the ground. Tips: 1) Eat/Drink where you can be safe and your gun on the ground won't get taken by another 2) When you are done with the item in your hand (eating/drinking), click the red X and then click the Rifle to take it into your hand.

So, I killed someone. I won't go into the details, but it was bloody and awful. Anyway, the body dropped and the kill icon hovered. But then the body just disappeared? He was wearing a large mountain backpack too. Nothing too loot. What did I do wrong?