Gabe/Waggie Damage Perk

I haven’t played Evolve for a good few months so I’ve forgotten most of the small details. I was thinking about which perks I could use with Rabe instead of my usual Swap/Reload/Reload, does the damage perks increase his poison dot since it’s a part of his kit or would I need to pick Acid Rounds in order to increase this?

Is this also the same for Waggie’s weapons and harpoon? Does it also increase Daisy’s flamethrower damage?

If I remember correctly the acid rounds work better. Also, moar numbers!