My problem with the use of dayz weapons is that its feels like they added them because they needed content, not because it fits in the game. Its like they only created the Syndikat for the dayz weapons.
I want game assets that fit in 2035. That means they could use dayz weapons but with some remodelling (so that it looks like future).
Also there is a lack of cars like Hvymtal mentioned and some civ cars. The city looks not realistic if there are only jeeps like on the example picture.
So i hope they will add some content for free later.