So with an upcoming influx of pauldrons for stormtroopers, what colors are canon for the different models? I'm a rebel player and just getting around to painting the stormtroopers from the core set. With the upcoming stormtroopers upgrade expansion, what colors make sense for the different models between standard squad leaders, captains, specialists, and the heavies?

From Wookiepedia:

A black colored pauldron indicated enlisted troopers, white was for sergeants, and orange for unit leaders or captains. Snipers wore blue pauldrons, and Grenadiers wore red.

https://starwars.fandom.com/wiki/Pauldron

The only things I recall ever appearing on film were orange and black.

I use Orange or White to signify my squad leaders, and black for my DLT-19. I'll likely use black for the Specialist and heavies, and red for the captain. That mostly follows the "canon" rank system, and should help keep everyone identifiable.

Thanks for the input. I'll start with orange and maybe white or grey for the standard squad leaders to represent sergeants. Then we'll see when the upgrade packs come out.