public OnPlayerDeath(playerid, killerid, reason)
{
   if(GetPlayerTeam(playerid) == TEAM_HUMAN) { 
      SendClientMessageToAll(0xFF0000, "A Human died!");
      SetPlayerTeam(playerid, TEAM_ZOMBIE);
   }
   if(GetPlayerTeam(playerid) == TEAM_ZOMBIE) {
      SendClientMessageToAll(0xFF0000, "A Zombie died!");
      // Restart ?
   }
   return 1;
}

public OnPlayerDeath(playerid, killerid, reason)
{
    new string[128],sendername[MAX_PLAYER_NAME];
    GetPlayerName(playerid, sendername, sizeof(sendername));
    switch(GetPlayerTeam(playerid))
    {
        case TEAM_HUMAN:
        {
            format(string, sizeof(string), "News: %s has died and turned into a zombie !", sendername);
            SendClientMessageToAll(0xFF0000, string);
            SetPlayerTeam(playerid, TEAM_ZOMBIE);
        }
        case TEAM_ZOMBIE:
        {
            format(string, sizeof(string), "News: %s has died !", sendername);
            SendClientMessageToAll(0xFF0000, string);
        }
    }
    return 1;
}