An advantage of being a Legionnaire is we are unbound by the trade laws of the Successor States. Because your missions can occur in remote areas beyond Legion supply lines, it will be necessary for you to use alternative sources for chassis and weapons. You've probably heard this referred to as the Black Market.

Market privileges are granted after you've successfully completed your first Black Knight campaign. The items available in the Black Market are weapons and chassis scrounged by impenitent profiteers from 'Mechs damaged or destroyed in battle. If you need something now, this is the place to go.