[DarkDeviL]

Originally Posted by Michael Shoe Maker I'm using PHP Code: AddCommandListener(Listener_JoinTeam, "jointeam")  to check if a team is joinable under certain conditions, however If the team is full as a result of a ratio I have to change the player back to their original team and this spams the chat a bit. Is there an event that handles team join so that you can stop the event and prevent any team changes?

Use what you already had, and hook player_team side by side with it, e.g.:

public void OnPluginStart()
{
    AddCommandListener(Listener_JoinTeam, "jointeam");
    HookEvent("player_team", Event_PlayerTeam, EventHookMode_Pre);
}

public Action Event_PlayerTeam(Event event, const char[] name, bool:dontBroadcast) 
{
    if(GetConVarInt(g_bcRatioEnabled))
    {
        SetEventBroadcast(event, true);
    }
    return Plugin_Continue;
}

public Action Listener_JoinTeam(int client, const char[] command, int args)
{
    if(GetConVarInt(g_bcRatioEnabled))
    {
        char sArg1[3];
        GetCmdArg(1, sArg1, sizeof(sArg1));
        int iArg1 = StringToInt(sArg1);
        
        int iTeamCountT = GetTeamClientCount(2);
        int iTeamCountCT = GetTeamClientCount(3);
        
        if(iArg1 == 3)
        {
            if((iTeamCountT / GetConVarInt(g_bcRatio)) > iTeamCountCT) //ratio = 3
            {
                CPrintToChat(client, "Joined");
            } else {
                CPrintToChat(client, "Full");
                ChangeClientTeam(client, 2);
            }
        }
    }
}

The "simplified" version of the player_team event would be like this:

public Action Event_PlayerTeam(Event event, const char[] name, bool:dontBroadcast) 
{
    SetEventBroadcast(event, true);
    return Plugin_Continue;
}

I have just included your if () {}, to check whether or not your plugin is currently enabled.