Destroyers and interceptors will prevent this. Anti-missile systems for capital ships have not been added yet so destroyers can’t do much to defend against bombers at range atm.
Yeah we need to iterate on the corvette a lot more. It’s meant to be configurable as either a sort of tank ship that’s capable of absorbing a lot of damage or as a support ship.
Upgrades will be free-form, the only restriction will be on the amount of credits you have available. We may add a progression system linked to certain weapon upgrades at some point but most of them will be free-form.
No. If the game does well enough at retail we may look at adding more ships and factions.
They are fighting for control of the resources available within the solar system. There isn’t much backstory beyond that at the moment.