I just added guns to my server but the guns are extremely good at killing pokecubes and I was wondering if you could add a player to poke-cube damage calculator.

pokecubes shouldn't be able to take damage at all?

if you meant Pokemobs instead of pokecube, there is already a config option called playerToPokemobDamageScale

If so, if the guns deal that much damage, it is probably a balance choice on the part of the gun mod, and you should probably check for configs for it.

playerToPokemob I will look into it.