Okay I’m not gonna say how military equipment should be insane to get and stuff like that.
What I want to suggest is adding some depth in melee combat. Then some servers might actualy even want to turn off the guns, and just use melee combat.
This would require adding some weapons like swords (fast), two-handed axes (strong) and spear (long), made of wood and metal, but being crude just as stone hatchet is.
Also to give melee fighters some edge in the combat, holding down LMB should raise your weapon, and sprinting with raised weapon would make you charge, running even faster, but consuming far more hunger (like 10 times, for example). Only for weapons, not for hatchet or pickaxe. This would allow a person with a melee weapon to have a chance to get in range of a shooter without being shot down. And ability to block attacks would be nice.
Also maybe adding throwing spears, which you could pick up after using, but they would cost much more resources to craft, have less range than bow, and only stack up to five to compensate.
In my journeying through worlds of Rust, I’ve seen people build things like arenas and then let teams fight inside, these kind of weapons would be perfect for that.