"Allow Friendly Fire (Teams)": true,
"Minimum Amount Of Items To Spawn (0 = Use Max Value)": 0,
"Amount Of Items To Spawn": 75,

I even have the loot multiplier set to 1.5x but it still stays at 35 items

hi. please look for the threads where i've already explained this, such as

https://umod.org/community/raidable-bases/34816-base-doesnt-spawn-anymore-difficulty-loot

also loot multiplier does not increase how many items spawn

version 2.0.3 Loot Amount Multiplier (1.0) - useful to scale loot amounts without having to adjust them all individually