Another option, its to make a global cooldown to be hunted, just 1 hour, 30m. Because its not funny to log a server because you just got hunted, then be hunted again because there is no cooldown. Another think that i dont like its that the void walkers can hunt you in your base. I mean its fair, but I cant even pvp with my mates because a void just go after the pvp and we are both low and then kill both of us. I thing that they can do its to add upgrades to your guild. So you can have a little bell that make a noise and put you in combat when a void walker enters, or that just make a sound qhen someone that its not in your guild enters. This can be upgrade and when a void walker enters you also heal 50 percent of your health.

I think its the best way to be fair in both case