It's not that big of a deal, but imperial stormtrooper officers wore black uniforms. Gray uniforms like in this game were worn by navy officers : r/StarWarsBattlefront
Imperial military uniforms | Wookieepedia | Fandom
IMPERIAL OFFICER UNIFORM
STAR WARS: Imperial Military Uniforms
Imperial military uniforms | Wookieepedia | Fandom
Star Wars Imperial Uniform - Etsy
Imperial military uniforms | Wookieepedia | Fandom
Imperial military uniforms | Wookieepedia | Fandom
Stormtrooper Corps Officer (Commander) by efrajoey1 on DeviantArt
Star Wars - Imperial Officer Uniforms by Grand-Lobster-King on DeviantArt