The "Justice" can certainly deal out some justice. With these weapons:
-Heavy Mass Driver Cannon (2)
-Lancer Gun (1)
-Long Range Cannon (2)
-Plasma Cannon (4)
-Heavy Rocket Launcher (2)
Also, there are 2 docking bay doors toward the rear, which you can see demonstrated in the picture with my hand in the shot. You will see these doors in my huge ship, "Vantage Point".
This ship uses only heavy weapons, and has no lighter weapons at all. The plasma cannons are the smallest weapons.
I know the engines are nothing special. I spent no time on them at all.