The gang doors should only open/close by use of the switches. If you run up to a door that's switch/code/print locked and it opens, why can't anyone just open it o.O This would probably solve your running problem with the clientside opening gang only doors.
My 5 cents:
Logging out on gang tag and/or in a gang base on gang tag should remove 4 points. I've seen many people willing to waste a minute of their life logging out and back in (dying anyway) to save those 2 points. Even people *picks on Donark* who log out and come back on a guest to wait till its clear then log back in. Its lulz
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