Helmet-lessness yea! More vulnerable to hedshot death, but more cool points and 'hardness' ... acid spit.. no!
Meh, I disagree with having it there. The acid spit isn't strong enough and it is wildly impractical to use in battle. However, an emote of having a space marine spit and a light sizzle from where it landed would be pretty neato.
Be nice as an execution feature but not as an attack to me. Only ever seen it used once in lore and that was a Night Lord.
Cool. Just found that quote: "Talos felt her fisted hand coming up to unleash the lethality within her rings - each one a digital weapon of some unknown configuration. He wasted no time. The Night Lord spat into her face, and hurled her away. She had not screamed in many years. It wasn't that pain was new to her, nor even a surprise, but this was no neat severance of limb from the body - this was the dissolving of her eyes in her skull, and never before had pain eclipsed her senses so completely." - Soul Hunter, eBook Also, see post 23 on page 3 for a couple other instances where acid spit is used.
I believe that several of the Primarchs this organ has stopped functioning or just simply didn't develop and weren't part of the Gene-seed that was inherited by the rest of the chapter and 2nd foundings. An example of this and the only one that I think was confirmed was Rogal Dorn and the Imperial Fists, Crimson Fists and Black Templars. So its possible this could be more of a racial trait depending on the chapter you choose at the beginning of the game.
Well the only one I could find that was confirmed was Rogal Dorn. And it was quoted somewhere either on the Lexicanum or 40k wiki that is just stopped working or stopped being as effective and was then not inherited. Evolution if you like!
Except evolution is positive changes not negative changes. Evolution also works differently. It probably comes from a defect in the progenoid glands.
