In an effort to slowly empty out my U4 Suggestions .txt file…
In Devlog #006, Nelson says the following:
Wearable items with storage can be marked to support a certain number of featured holstered items. This is the replacement for 3’s primary and secondary weapon feature that showed on your back. In this screenshot the rifle is holstered to the rucksack and rattles around with it, but this feature will also be used for example to show pistols in a hip holster, magazines in a chest rig, or a sleeping back [sic] on top of a backpack.
For the most part, this is only an aesthetic feature (that also shows what (potentially scary) loot people have). It may be preferable to make it so that players may manually select the holstered items that appear, and in what state that appear.
Now, this kinda overlaps with some semi-confirmed and/or previously suggested things, such as “quick slots” or magazines needing to be in your chest rig for efficient reloading, but… I don’t really have an excuse for that overlap. The main idea behind making this suggestion post is so that lanterns can hang off backpacks or belts.
Since the item’s state would be chosen by the player, the lantern could be turned on and used as a mobile light source without actually requiring the player to actively carry the lantern in their hands.
Obviously, this helps the player quite a bit if darkness is frequent. So, holstering other items should come with benefits too (such as magazines in a chest rig), or this system can just replace how holstering works as a game mechanic (not just visually, meaning no more [1-9] hotkeys just because you exist).
Walkie-talkies could be placed on your belt, and although you realistically wouldn’t be able to hit the push-to-talk button, at the very least you’d be able to receive messages.
Item states could be changed from the inventory menu, or perhaps even from a separate radial(?) menu that lets you tweak things like your hoodie being zipped up or not, and… just the item state of everything hanging on your person. If this kind of item holstering in Devlog #006 replaced hotkeys, then it’d probably also be the menu where you select the item to use.
It may be important to note that an oil lantern would kinda just extinguish itself from all the oil sloshing around if it was carried on your belt, but an LED camping lantern and any other sort of electric lantern would be realistically functional still.