S2C Packet 5: Channel User Event

This packet contains multiple subpackets that behave differently from one another:

• S2C Packet 5.0: Channel User Add - Another user has been added to the channel.
• S2C Packet 5.1: Channel User Remove - Another user has been removed from channel.
• S2C Packet 5.2: Channel User Switch - Client is about to be forcibly moved to another channel.