1.Caves. I think caves would be a good addition because they would be one of the main pvp and raiding zones if people were to build in the, they could have radiation, loot and resources in them and they would just make the flashlight alot more useful.
2.More melee Weapons and Survivalist weapons like Spears,homemade and military knives, baseball bats, clubs, sticks, crossbows, more variants of the bow and machete’s.
3.Three Weapon Tiers. Tier 1-Homemade-Spears ,clubs, bows, hand cannon,pipe shotgun-ONLY Craftable Tier 2-Common Hunting/old common guns and weapons-Machete,hunting knife, double barrel shotgun, sawn off shotgun, m1 garand, old ak 74, old handguns, compound bow, compund crossbow-Hard to Find Tier 3-Military-M4,Pump action shotgun, Rambo knife, Military Machete, Mp5a4-Only found in something that comes once every 5 or so days such as the supply plane crashing or if they add this heli once it gets shot down its drops some military loot.
4.Ammo is harder to craft and maybe you get back 75% of the shells of the bullets you shoot and you need a reloading station to reload the bullets.
These are just a few ideas that i have had that i think would make rust a better game. Post what you think they should add to rust below.