No. Capital ships belong to factions that have an agenda to claim and hold space. The brigands have no such desire (some Brigand -players- might, but that's the Council's role. Brigands are pirates, largely similar to the Liberty Rogues in their disorganized but widespread state). Therefor they should not be using capitals. Including cruisers.
We already have way too many unlawfuls fielding navies that are WAY outside of the scope of what the faction could sustain (Hessians, Sairs, Casts). Adding more to the mix isn't going to help matters. If there's any other Gallic unlawful faction that should be using cruisers, it's the Maquis (but it's not their MO).
Wide awake in a world that sleeps, enduring thoughts, enduring scenes. The knowledge of what is yet to come.
From a time when all seems lost, from a dead man to a world, without restraint, unafraid and free.
Mostly retired Discovery member. May still visit from time to time.