Only reason to play unturned 3 multiplayer is to raid everybody on the server, I think that in 4.x raiding can be improved.
MATERIALS:
Wood- can be broken using axe and chainsaw
Reinforced wood- canot be broken with mele but it is easy raidable with snipers and machine guns
Stone- it is like reinforced wood but 2.5x more health hard to destroy using snipers and machine guns requires missile s and chages to destroy (dragonfang does 0.25 damage)
Brick- it is like stone but 2x health
Metal - impossible to destroy with snipers and machine guns requires charges and missiles
(Takes 6 charges to brake a wall )
Reinforced metal - can be destroyed using only missiles and rockets
(Takes 10 rockets ro enter or 7 missiles)
ITEMS EARNED BY RAIDING
When you destroy a locked wooden crate using a dragonfang or open it with a crowbar -you can take everything
But since metal lockers can be only destroyed with explosives blowing up a locker with a sniper inside could give you only scrap from the gun and some attachments from the gun . There is a small chance that it drops a gun that was inside (around 10%) durability of the gun will be at 0%
Only reason to blow up a base is to make some building space for you or to troll
Before you all pvp kit home server players start to complain buildings will despawn after a week