I see Sierra as the side-kick villain flyer in this one as I believe he would have gotten feed up with Rinkus after what occured. Plus I believe he would have gotten suspicious of the Rainbow Faces, having seen them leave Threehorn Peak.
Ooo!
Sounds interesting! @Little Bro
Would you be open to Sierra being witj Gnosasaur in the Pteromaid territory? I can see them working together.
That one's up to
@Goldenwind
@Gentle Sharptooth I don't know if you've though of any history for the Pteromaid territory, but ideas are popping up in my head now...

Maybe it's an abandoned Forerunner base, or maybe Gnosasaur and his accomplices built it with stolen Forerunner technology?
--EDIT--
Also: just wondering, is the blue comet just to set the mood, or will it be landing somewhere?

Sorry for my onslaught of questions.
