Changing loot in all boxes and barrels? (С#)

how to change Loot in all boxes and barrels which appear?

 

You could do like :

Code:

void OnEntitySpawned(BaseNetworkable entity)
{
      if(entity is "loot.crate")
      //Change items in crate here
}

[DOUBLEPOST=1460154336][/DOUBLEPOST]Barrels I cant be to sure about, I think you can change that when the entity is destroyed.