[psychocoder]

I thing have found a little bug.

in function ChangeTeams()

new maxplayers = GetClientCount(true)

must change in

new maxplayers = MaxClients

because if a player have a higher clientnumber as player online than he will not be swaped.

also I had add a new thing, you can choose after how many rounds the plugin swap the team.

add this points and change one function

new g_rounds
.
.
.
public PlayerRoundWinEvent(Handle:event, const String:name[], bool:dontBroadcast) 
{
    g_rounds+=1;
    new plugin_rounds=GetConVarInt(g_Cvar_Swapteams); 
    if(plugin_rounds != 0)
    { 
        if (plugin_rounds==g_rounds) 
        { 
            new Float:delay = float(GetConVarInt(g_Cvar_BonusRound)) 
            PrintToChatAll("\x01\x04[SM] Teams will be swapped in %i seconds", GetConVarInt(g_Cvar_BonusRound)) 
            g_rounds=0; 
            if (delay > 0) 
            { 
                CreateTimer(delay, DelayedSwitch, 0, 0) 
            } 
            else 
            { 
                ChangeTeams() 
            } 
        }
        else
        {
            PrintToChatAll("\x01\x04[SM] Teams will be swapped in %i round(s)", plugin_rounds-g_rounds)
        }
    } 
}


public OnMapStart () 
{ 
    g_rounds=0; 
}

And now you can set round over the cvar sv_dod_swapteams.
sv_dod_swapteams 0 // no swap
sv_dod_swapteams X // swap after X rounds - > X is a Integer