Ahoy mates! Here I've a suggestion that I think it could rich the battles and merchant missions. The idea is to have other barrel types, like poison barrel, or water barrel.
POISON BARREL: When it explodes it throws snake venom instead of an explosion, and it does the same effect and damage of the snake poison.
WATER BARREL: The water barrel when explodes, instead of an explosion, throws a lot of water, like the chest of sorrow. in a battle it could sink a galleon easily.
Here you have a concept art:
There can be more barrel types. Leave your suggestions for barrels and I will add them with a concept image.
Comments suggestions:
GROG BARREL (@ManuElManouche ): When it esplodes, it does the effect of vomiting on the face and the effect of drunk for a few seconds.
INK BARREL (@VendettaX84 ): This barrel when it explodes, for a few secons, it gives the ink in the face effect like with the kraken.
See you in the seas mates!


