Loot Quantity Config - oSoDirty/DNA_Keycards GitHub Wiki
Options can be found in (DNA_Keycards\System\LootContainers\KeyCard_LootContainers_System_Config.json)
In here you can set min and max quantities for or disable (max = 0) each category for each tier. As well as set valuable odds.
There is no need for an example, as it is exactly the same in the config, and each option has it's own explanation.
Magazines and ammo piles spawn the 1st full, and the rest between half and full. Ammo boxes are full as usual. The mod knows whether it's a box or unpacked ammo, no worry there.