Создайте Плагин...

#include <amxmodx>
#include <cstrike>

new CsTeams:g_winningteam
new const g_wins[]="sound/win.wav"//Твоя мызука Win.wav,можешь поменять на с воё название

public plugin_init()
{
    register_plugin("X","x","X")
         register_message(get_user_msgid("TextMsg"),     "msg_textmsg")
    register_logevent("event", 2, "1=Round_End")
}
public msg_textmsg(msgid, dest, id)
{
    if(get_msg_arg_int(1) != 4)
        return PLUGIN_CONTINUE
    
    static txtmsg[25], winmsg[32]
    get_msg_arg_string(2, txtmsg, 24)
    
    if(equal(txtmsg[1], "Game_bomb_drop"))
        return PLUGIN_HANDLED

    else if(equal(txtmsg[1], "Terrorists_Win"))
    {
        formatex(winmsg, 31,"Zombies Win!!!")
        set_msg_arg_string(2, winmsg)
        
        g_winningteam = CS_TEAM_T
    }
    else if(equal(txtmsg[1], "Target_Saved") || equal(txtmsg[1], "CTs_Win"))
    {
        formatex(winmsg,31,"Humans Win!!!")
        set_msg_arg_string(2, winmsg)
        
        g_winningteam = CS_TEAM_CT
    }
    return PLUGIN_CONTINUE
}
public event()
{
    client_cmd(0,"spk ^"%s^"",g_wins)
}