Right now i think the uss is just spawn randomly around player, my suggestion is that USS should be created by the mission arround that area and appear in the real space for every play to see.
for example the mission that ask player to find Back Box. if this mission generated at the starport, the USS will appear in that system and any player can find it.
if somoone get it and turn it in everyone else that accept this mission will fail. and the NPC in some hunting mission need change as well it should be the real NPC that wander around and do something not just setting in USS all day.
and it should be able to run away too.
for example the mission that ask player to find Back Box. if this mission generated at the starport, the USS will appear in that system and any player can find it.
if somoone get it and turn it in everyone else that accept this mission will fail. and the NPC in some hunting mission need change as well it should be the real NPC that wander around and do something not just setting in USS all day.
and it should be able to run away too.