Join the rp discord server https://discord.gg/ZJYRqCPm
All your questions will be answered or most of them
Ship classes are just different versions of one another. Corvettes offer anti fighter and patrol abilities (At least for me) while frigates are more for escorting and troop deploying. Destroyers are meant for absolute destruction of enemies
Kind of like sw where you can go anywhere but some people have interdiction
meaning of life is sex
Reasonable faction size is about a system or two with a handful of ships