There's 3 Military trucks (props) in military area, loot is under trucks and next to.
There is also Military Tents but they do not have very good loot (accept one, but has a low chance of spawning anything)
You can find the rarest guns from here.
Weapons you can find at Novi Dvor
M4A1 Holo SD
Mk48 Mod 0
AKS 74UN SD
AK 107 GL
AK 107 PSO
M16A4 M203 ACOG
M4A3 M203 RCO
(Thats not all, but you can edit if you want)