We need more Guild Management, it's something that it's implemented in some other games too. Where the Guild Master defines ranks and their access level to certain stuff, stuff like:
Who can access a specific container;
Who can access a specific gate, thus a specific area of the base;
Who can access a specific door;
Obviously the Guild Master would have full access to everything within his claim, and would be able to give any permissions to the ranks he had.
This mechanic is vital for Guild Management, and I believe there's a lot of Guild Masters that crave for this kind of thing. It turns a bigger group much more easier to manage.