Guardians of the Covenant “Deathwing”

Hello brothers and sisters! I have been working on a Guardians of the Covenant army that consists of terminators and I’m absolutely loving it. I haven’t been able to find a lot of lore regarding the Guardians but I really like what I’ve seen so far. I’m having fun with the idea of inscriptions on the armour and whatnot. My big question is that I haven’t found any official references to their Deathwing and Ravenwing equivalents being named the same or anything different. Is there anything official that I’ve missed? Since I haven’t found anything, I’ve been playing around with my own ideas that match the chapter’s themes of “guarding the covenant” and obsession with the literal texts of the chapter. As I’m only doing a terminator army I’ve only been focusing on the “Deathwing” side of things and I feel that the traditional name doesn’t fit the theme of the Guardians. The main idea that I like and is sticking in my head is the Oathkeepers in place of the “Deathwing.”

My mental gymnastics of coming up with it is covenant=oath, oathkeepers sounds threatening and ominous without being over the top and is a positive thing as long as you’re keeping your oath. So “Guardians of the Covenant 1st Company: The Oathkeepers,” what do you think?