If we get fading doors rules are like this:
-1 door per opening, fading or not, no fading doors against normal doors
-No remotely controlled doors.
-Fading doors have a keypad on the outside and a keypad/button on the inside, no other wire allowed.
-Fading doors are toggled and may not shut automatically.
-No fake keypads, only one.
If admin sees an illegal door -> clean up ALL of users props.
Simple as that.
Ill take this one piece at a time
-1 door per [base], although this COULD be a rule, I think more than one is much preferable; think about how long it takes to crack, you'd need time to get from somewhere to defend your base, etc. Give a more reasonable time with 2 doors rather than one ^^
-Define remotely controlled doors; If you mean a button on the other side of the map or a keypad in a similar situation, then I absolutely agree - If you mean a button that's slightly hidden but nearby, then it would depend on the situation I think.
-As for no wire allowed, i think there are situations that might merit otherwise; For example, I have a main entrance to my base that uses regular keypads and follows the rules, and then I have an entrance that only I can use, that is a wiremod keypad (so it cannot be cracked) - Because I have a legitimate entrance into my base that anyone can use, I can freely use that wiremod keypad just for myself, and anyone else can break in using the main entrance. However, I do agree that wiremod should be strictly monitored and rules should be made about its usage.
-Fading doors should not be toggled as a requirement: You can either have them toggled, or you can have them on a minimum hold time as I stated in my rules - EX, they must open for a minimum of 5 seconds (That way, if someone was waiting outside the door to break in, it gives them a reasonable amount of time to sneak in, etc. This time can be made higher or lower depending on the server rules.)
-No fake keypads - I agree completely. Also, no hidden keypads