The Unfriendly Skies
War machines are painted black with red accents.
Per FM:Crusader Clans, page 52.
Other references:
Predator, CB: Miniatures Rules (p 30)
The Clan Fire Mandrill standard always appears on military machines, though not always prominently displayed.
The Kindraa standard is a flaming fireball, always painted as streaking across a fuselage or torso.
Per FM:Crusader Clans, pages 44 and 52.