Bright Flame Regiment
The color scheme of the Chasseurs is a coal black base with painted red and orange flames leaping and twisting up the right side of a 'Mech or along the right side of a vehicles or fightercraft fuselage.
Per FM:Periphery, page 60.
On a 'Mech's left breast is painted the insignia of a BattleMech hand cupping a burning flame, set on a circular white field edged in red. Vehicles and fighters locate the insignia in an appropriate area. Per FM:Periphery, page 60.