Suggestion UI tweak: give cargo, fuel and otherwise "minor" logistical hullmods their own uiTags, for easy filtering and applying them, since they are mostly being used all in tandem. Something like "Logistics+", to be right next to regular Logistics tab.
Consider balance review for external cargo pods and tanks. They are too cheap for what they provide, especially on frigates, and since you can apply them right in space, makes deep space exploration pretty chill even with mods like Nomadic Survival and Perilous Expanse. Not talking about how busted shuttles are, absolutely trivializing "spacer" start in Nexerelin, providing you with 330/315 almost invisible transport right from the beginning. If "busted" is the intended state, consider at least adding docking requirement for their installation to prevent derelict cargo amassing in the middle of debris field. Or don't, if this is intended too. At the same time, somehow, they are feeling great and not completely out of place for bigger ships, so it mostly frigate-destroyer size situation.
Additional mod idea: something very cheap and light in OP cost, but providing little ground support bonus and/or reducing marine casualties a bit. Maybe two separate mods for that, something like "infantry arsenal lockers" or so, with drawbacks of max crew size on the ship (more lockers for weapons and armor, less space to sleep on). This may open opportunity to play as commando fleet with many militarized small ships instead of big one with dedicated ground support package. And also fill low OP leftovers on big ones, too.