Sorry if the pic is kind of small. In the screenshot, at the bottom left there is a weapon silhouette. The silhouette shows a medium/long range optic on the weapon, but the weapon in the players hands has a short/medium range holographic optic on it. Could this be a nod towards more weapon customization along with a weapon skill tree? Discuss. Edit: I'm not talking about the gun, I'm talking about the OPTIC on the gun and the icon being different.
I think it will be more of a Borderlands style loot system, where the weapon drops have different parts every time. Having customizable weapons takes too much of the random factor away from looting.