What i am suggesting is repairing items makes them stronger if you survive a shot to the chest multiple times and then repair that item it would give you more protection, same with tools and guns perhaps even walls if you had the correct materials since theres only so much you can do to fix a wood wall (this would lower loot x servers that will no doubth pop up since they are so popular in unturned, since shooting a gun would lower its durability whitch would then allow you to fix it making it better and that would be easy to do in servers where ammo is plentifull) Fixing wouldnt be that easy to achieve as i think work stations should be a thing fixing a gun would either need another gun to be scrapped or for you to craft individual components after learning them. Those components would each have a durability that would along with skills in repair, how good the workstation is, what tools it has, and how good they are contribute to how much durability is added to the repaired item. (Workstations needing tools added to it could be a nice way to progress as it would make repairing cost less as you get better items)
Every item should have stats making some better even if they havent been repaired at all that would make keeping clothing much more common its a survival game everything should be valuable for clothes it could be some dry faster, give more protection, are lighter,give better radiation protection, give more space (space should be a stat with military clothes just having a higher chance for larger space), for guns it could be some shoot faster, have better recoil, reload faster, jam up less. And for tools it could be efficiency, how fast it breaks, how much materials you collect, how fast/good it repairs other items/buildables, how fast it removes a builable item. All of these could get better as you repair the item multiple times.
I would also like for it to be so during, near and after bloodmoons light would not be visable unless its part of the world, a teammate of yours or a placed item giving off light to encourage the use of a lightsource light could be replaced with a glitchy texture whitch would be hard to see since it would be dark unless you had a flashlight on yourself but it would also alert the player who had the flashlight on (stalker zombies could be nice ones that follow you outside of the town and if you go inside a base they would spawn a horde that would attack your base).
If these suggestions are too much for unturned || even adding them to the current game could be nice perhaps as a new type of gamemode