u/Arch0n84

I am wondering if anyone has any input. Here's some lore-bits I've gathered so far:

• Whenever a Company Champion dies the Imperial Fists will hold a tournament where any warrior of the company may compete to become the new Champion.
• A Company Champions will take to the battlefield as part of a Command Squad assigned to accompany a hero of the Chapter along with several other Veteran battle-brothers and will fight alongside his company captain.
• The Company Champion is the greatest warrior of a Space Marine Company, though he is not a high-ranking officer, such as a Captain or even a Sergeant.
• They are technically outside the chain of command and are outranked by lieutenants and sergeants.

So the Company Champion is outside the normal command structure, is of "lower" rank than a Sergeant and can in theory come from any squad in the company (meaning he doesn't have to be a Veteran), as any battle brother could be chosen. If so a white helmet seems wrong as he hasn't necessarily earned the right to wear one. The most recent Combat Patrol had him painted in a yellow helmet and there is an old Company Champion depicted in the 6th ed Sentinels of Terra Codex suplement but they've also painted the helmets of the Veterans yellow in the box, and in the supplement the Terminator heads are yellow, which is outdated.