[AlonzoTorres]

With quad I guess you mean square? Then use this.

Quote:

(playerid, showplayerid, color) playerid The player that will see the player's changed blip/nametag color showplayerid The player whose color will be changed color New color. Set the alpha to 00 for an invisible blip.

Код:

for(new i = 0; i < MAX_PLAYERS; i++)
{
    SetPlayerMarkerForPlayer(i, playerid, ( GetPlayerColor(playerid) & 0xFFFFFF00 ) );
}

That will set the playerid's blip/quad/square to be invisible for all the players (i) in the server. Feel free to give me a rep and comment back here if it worked.