Added banned roleplay topics:
Erotic, Suicide, Miscarriage, and Abortion RP are prohibited.
Added "DOC" for greenzone clarification:
The following activities are prohibited in all greenzones unless you are in LEO or DOC custody
Revised Gang Size rules:
Previous
There is no limit to the number of members that can belong to a given gang, however gangs are limited to a maximum of 5 active players that are participating in an illegal or hostile scenario. This includes the following:
Gang members participating in the RP scenario in any fashion such as providing information as a lookout or, functioning as a getaway driver.
Gang members seeking to rescue other gang members who are being detained. The detained members count toward the maximum of 5. The exception is for the PRISON BUS TRANSPORT ONLY where the incarcerated do not count towards the gang count. Upon being free, they are expected to flee the scene and not take part in hostilities. 
Gangs should not ally with other players, gangs, or security groups to increase their effective size when dealing with other player groups. This includes not only illegal and hostile activities but also relaying information for an active scenario. Two groups working together (while maintaining group size) to hit a bank or rob a store is acceptable, but two groups working together (while maintaining group size) to fight another group is not.
Updated
Gangs are limited to a maximum of 5 players participating in an illegal or hostile scenario.
Gang members acting as lookout or getaway driver are counted towards this limit.
Gang members ziptied, held hostage, or in police custody count toward this limit. In other words, if 4 gang members are in custody of the police and receiving treatment at a hospital, only 1 person can attempt to save them. 
EXCEPTION: During a prison bus breakout attempt, the individuals in custody do not count toward the maximum. These individuals cannot join in hostilities against the police once freed and must flee the area immediately. 
Gangs may only ally with members of another gang to perform RP or mechanical criminal activities, excluding hostilities with other gangs / player groups. This alliance includes subsequent breakout attempts.
Gangs may not ally with members of another gang to engage in hostilities against other gangs / player groups, not may they ally with other gangs to break gang members out of police custody if arrested following hostilities with another gang / player group.