Floating ideas for primary guns...
damage : 6000
range : 5000 km
clip size : 1
reload : 12 sec
Jupiter Arm's dreadnought cannons look big and menacing. Big burst damage by firing all cannons at once but long reload time to keep it balanced.
primary guns are HEAVY PLASMA CANNONS... + 200 blast radius
Oberon line of ships should have superior accuracy with their transhuman technology. Their dreadnought should have same/similar primary gun as their destroyer.