When your sanctuary system is being blockaded it's basically a sitting duck - UC cant get reinforcements and their fleets are usually so-so.


I therefore propose that UC, thanks to their "hack the reality" powers should:

hack their own node that is besieged/has an enemy fleet orbiting 

and/or 

hack neutral/enemy nodes from away 

to

get control of enemy fleets, just like they can "hack the droids" of pirate lairs.


This way they would also aquire ships that are manned (UC lacks manpower) which would be precious, especially during vs human matches - as humans can pinpoint the location of your empire by deduction - rendering passive invisibility of systems moot.


It could need high eg .tier 3 tech tree technology.