Well first of all mods can not ban, so you must have gotten 4 warnings. And based on what you described you were doing "Fading Door Abuse" which is using your fading door to open it quickly (to walk through or shoot through) and then quickly close it so nobody else can get in or you can not get shot.

Well first of all mods can not ban, so you must have gotten 4 warnings. And based on what you described you were doing "Fading Door Abuse" which is using your fading door to open it quickly (to walk through or shoot through) and then quickly close it so nobody else can get in or you can not get shot.