Hey. I have some suggestions for improve the teleport mechanich and realism. - Unable teleport to the ship if you are jumping. - Unable teleport to the ship while you are in combat. - For better realism unable to teleport to planet if you are not over the teleporter in the ship. - For avoid duplication, if you are in your friend ship, and this friend disconnects, you go instantly to your own ship.
I think the last one is better for preventing duping, otherwise this game isn't about realism at-all.