aren't orogs the underdark orcs and orgrillions the half orc half ogre?

"An Orog is a crossbreed between a male orc and a female Ogre."

"The ogrillion is the brutish, armor-skinned offspring of a female orc and a male ogre."

I may make the variant Ogrillion a bit later.

https://en.wikibooks.org/wiki/Dungeons_&_Dragons/Monsters/Orog

Maybe im just too keen on the Forgotten Realms and assume other people are using that setting. What setting do you play in? If i understand correctly, orogs being part ogre is only true in non-FR settings. As quoted in what you linked, "In the Forgotten Realms setting, Orogs were an orc tribe who became cut off from their mountain home after a great attack into the civilised world, they eventually found a way into the Underdark and hid from their Elven and human enemies. They remained in the Underdark for thousands of years, fighting deniziens of that terrible realm all the time. Eventually they became superior in strength and personality to normal mountain Orcs."

Of course being your game, you may well be using half ogre orogs in a Forgotten Realms setting too, cuz its D&D and we can do what we want lol. but at least now i know why i was assuming things, cuz in my head, D&D is Forgotten Realms even though i realize there are other settings.

To be honest, I just liked the Idea and wanted it in my game. I looked for what seemed the best in terms of fun and combat and found these. I made my own world with FR and Neverwinter ideas with a hint of steampunk origins.