Guild VS Guild in my opinion would be a good Idea and instead of having a Guild SH you can have an actual guild base that you can modify with Defences and thing like Kolto Tanks that can be used as spawn points and Turrets to help take out other players. In addition to that Guild Flagships can attack each other and can be boarded by the opposing Guild with either Ships that land in the hangar or Pods that launch into different parts of the ship and where you land can determine what damage you can do to the ship like if you land in the engine room you can take out the engines to prevent them from retreating.
