nah m8 A first person heavy weapon that shoots highly pressurized liquid (acid (3x damage to enemy with void damage), gasoline (3x damage to enemy with solar damage), and water (3x damage to enemy with arc damage) it's more or less a sacrifice to your heavy weapon in order to buff overall team damage however each of them is exotic and you can only receive 1 of the 3 per character, meaning that you'll need to do the quest on each character in order to unlock the grumpier for the exotics.