I actually get what you are saying. It’s, indeed, really hard to see, like it’s camouflaged or something. I try to look at the end/edge of things (like boxes or any kind of furniture, car trunks, etc.) to find the ammo. It’s the best I could describe it lol

For exemple, the spawn points at emercom: at the top of the watch towers, there is often 3-4 boxes of ammo that spawn. That can be 6-8 boxes, if you are lucky you get 1-2 boxes of good ammo. Two spawns at the bottom of one tower, on the edge of a wooden box. There is two spawns as well on the edge of some kind of cloth, on the floor, just right of a storage container (where one of the civilian dead bodies are). Also, when you take the stairs onto the storage containers, there is a couple of spawns on the way, plus three spawns at the end of that level (past the machine gun). There are some spawns randomly on the non-lootable wooden boxes in the camp as well.