Just as it sounds, Bruant is a wildcard now, and he has camouflage in its profile. Is Bruant in Camouflage state while in a fireteam? There is no place saying one thing or another i think, but when Bruant became able to join a FT back in N3 it was stated in the faqs (if i recall correctly) that you cant be in marker state while in a fireteam. Is he able now, or should it be stated in its profile or in the future new faqs?
https://infinitythewiki.com/Fireteam_Integrity In the Active Turn and Reactive Turn, a Trooper stops being part of a Fireteam in the following cases: <snip> The Trooper enters or is in a State that allows it to be substituted by a Marker (Camouflaged, Impersonation, Holoecho...), unless a Special Skill, piece of Equipment or Scenario Special Rule indicates otherwise. So I guess he can be deployed in a Fireteam but will be kicked out as soon as the first turn begins.
I suppose he can always deploy out of the Camo state and enter his single use Camo later in the game.
