Holding the Line
When not using camouflage, Swann's Cavaliers adopt a color scheme of white with black and yellow trim.
Per Mercenaries Supplemental, page 62.
Thunderbolt, Mercenaries Supplemental (color plates)
Their regimental insignia, a swan flying across a blue field, is displayed on the right leg of BattleMechs, right wing of fighters, and the front-right of vehicles. Per FM: Mercenaries Supplemental, page 62.