The Crusade uses CIWS to shoot down missiles? CIWS can only shoot down missiles aimed at the ship that they are mounted on. I guess the Crusade goes off on its own and tries to attract attention before the rest of the fleet is spotted? But if the incoming missiles are aimed at a ship right next to the crusade, those CIWS won't fire. I'd recommend using Gauss turrets instead.
Is the cryo drop capacity for roleplayig purposes, or do you plan on doing boarding actions with that single marine company?
You could probably afford to drop some maintenance life from the Crusade and make it match the intended deployment time better.
The Ranseur has very short ranged weapons. Because the Gauss cannons have a range of 20,000 km, a ship with a speed of 4,000 km/s or higher might outmaneuver it even if the Ranseur is fast enough to catch it, depedning on the two captains' initiative ratings.
The Voulge has no armor to speak of. One hit of power 4 or more will damage internal components, possibly taking out the single engine or single fire control, crippling it. Or it could hit the magazine and blow it to smithereens. I'd recommend more armor, engines, and fire comtrols. That will make it a bigger ship, but more durable.
Also, does the Voulge rely on the active sensor from other ships? It doesn't have one of its own. If these different designs are meant to work together, then you may want to match up their speeds better. That extra 600 km/s on the Voulge is wasted if it has to wait for the Crusade to keep pace.
The Warcarriage doesn't have the troop capacity for 9 marine companies for the boarding ships. Of course, if the boarding ships keep their marines frozen in cryo drop pods, then why does the carrier need the troop capacity?
The anti-ship missiles on the Warcarriage are way too slow. Your own ships can outrun them.
For the sake of your ground forces, I hope you establish complete superiority in the theater before you call in the Battleaxe. That single layer of armor would make me think twice about walking into the recruiter's office.
If the Crossbow serves as both a command ship and a supply ship, that means if it needs to run back to your planetary stockpiles in another system to load up on supplies of one kind or another, then your command staff go with it. Maybe the admiralty designed it that way on purpose to buy themselves an excuse for a trip back home.
The Aragon has the same problems as the Crusade and the Ranseur: gauss cannons are too short ranged for anti-ship work, and CIWS are limited to defending the ship they are mounted on. And it uses that familiar slow missiles.
The Aragon is also very, very slow. If it's chasing something, then it probably won't catch it. If it's being chased, then it will be caught. If it's approaching a stationary target, then it's going to get shot at a lot on the approach. If it gets shot at, then it can't dodge well.
If the Aragon transits under its own power, it will have to do a standard transit, creating a period of jump blindness of up to 30 minutes. With a military jump drive it could squadron transit, limiting jump blindness to at most 30 seconds. That assumes that it can currently transit at all. I thought civvy jump drives wouldn't work on military ships, but I've seen that kind of thing twice recently on the boards and I've begun to doubt myself. Regardless, if there is someone waiting for you on the other side of a jump point, the Aragon is going to get pummelled with impunity.