I think the problem may simply be in density of these spawns.
You only have that many military class spawn points on the map (barrack buildings etc.) with lots of items designated by the loot table to spawn in military areas only. That's why the items are seen there so frequently, because even spawn numbers in loot tables are low, the amount of possible spawn locations is also low relatively low.
Then you have far, FAR more civilian class buildings on the map, in principle every single house. So even though civilian items spawns are much higher than military ones, those spawns spread out over a vastly higher amount of locations on the map, thus giving the illusion that they are more rare.
Solution here would be to lower the military class items even more so they are on about the same level as the civilian ones. But with so many military class items added by various mods, even if we reduce their number to minimum 1 item spawn, that's still dozens of items to respawn in those few military locations on the map every hour.
We recently reduced item spawns all across the board and while percentage wise all items were reduced the same amount, it is vastly different number wise. For example a match box may have been reduced from 150 spawns to just 75 (50%) and this will be easily noticeable when looting, but a military gun reduced from 20 to 10 (also 50%) will not have as high impact. We're continuously tweaking item spawns in every single patch, so we'll definitely take outcome of this poll into consideration when releasing updates.
That's my explanation for what you're experiencing. Thanks for coming to my TED talk.
Mom, I coded something!
Wallets will only accept cash and paper next patch. While it's not unreasonable to allow other small items, each and every one of them would have to be explicitly defined in the code which makes this tedious and we'd have to deal with "why X isn't allowed in wallet if Y is". So cash and paper only to make it simple.
Another small update coming in a few minutes:
Fixed spawning of certain Shemagh colors in game
Fixed spawning of MMA tops, shorts and hand wraps in game
Improved coat textures and clipping
Added new coat variant: Black Wool
Added new MMA top variants: white, telnyashka
New Airborne gas mask should no longer muffle voice
Took like 15 minutes, but I finally found the missing variants. There have been name conflicts and that's why the confusion between the two shemagh types.
This should be fixed in a small update that will be released shortly.