So does anyone know whether or not any of these O.D.S.T.'s were fighting on the fronts of Reach? I have been wondering this for some time now. I fany body knows please respond when you can. (Hopefully soon) Thanks
I don't believe there is any lore released for the individual characters... However, as the Pillar of Autumn had just departed Reach three weeks earlier. I can assume that Fireteam Raven is actually a new creation, with ODST's cobbled together from casualties and losses suffered at Reach.
But that's just my two cents.
Would make sense
So does anyone know whether or not any of these O.D.S.T.'s were fighting on the fronts of Reach? I have been wondering this for some time now. I fany body knows please respond when you can. (Hopefully soon) Thanks
Here's all I can find on them Lore-wise:

https://www.halowaypoint.com/en-us/news/nevermore.
https://www.halopedia.org/Halo:_Fireteam_Raven.
https://www.halowaypoint.com/en-us/news/thats-so-raven
so possibly. excluding the fact that their armour systems are entirely different than the O.D.S.T.'s OG armour. but I guess that is the combat evolved O.D.S.T. amour system since we never actually saw it.