A single squadron of 2-6 Rogue Trader escorts and auxiliary vessels may accompany each Rogue Trader capital ship in a fleet, in any mix desired. Separately, it may also be accompanied by any number of cargo ships of any type (whether or not the scenario requires transports), organized in squadrons of 2-6 ships, but these squadrons can only contain cargo ships and always count against their full cost against the total points in the fleet. Xenos vessels cannot be used in fleets that include Space Marine ships.