Combine várias tabelas MySQL exclusivas e ordene por uma coluna

Tente isto:

SELECT * from (
SELECT banned as Punisher, banned_by as Punished, ban_reason as Reason, ban_expires_on  as Expire, ban_time as Date  FROM mb_bans 
UNION
SELECT kicked as Punisher, kicked_by as Punished, kick_reason as Reason, NULL  as Expire, kick_time as Date FROM mb_kicks 
UNION
SELECT muted as Punisher, muted_by as Punished, mute_reason as Reason, mute_expires_on  as Expire, mute_time as Date  FROM mb_mutes 
UNION
SELECT warned as Punisher, warned_by as Punished, warn_reason as Reason, NULL  as Expire,  warn_time as Date FROM mb_warnings
) d order by d.Date DESC;

EDITAR

como posso obter o tipo de registro? (ou seja, se o resultado retornado é da tabela de bans, tabela de mutes, tabela de kicks etc.)

SELECT * from (
    SELECT banned as Punisher, banned_by as Punished, ban_reason as Reason, ban_expires_on  as Expire, 'ban' as TableType, ban_time as Date  FROM mb_bans 
    UNION
    SELECT kicked as Punisher, kicked_by as Punished, kick_reason as Reason, NULL  as Expire, 'kick' as TableType, kick_time as Date FROM mb_kicks 
    UNION
    SELECT muted as Punisher, muted_by as Punished, mute_reason as Reason, mute_expires_on  as Expire, 'mute' as TableType, mute_time as Date  FROM mb_mutes 
    UNION
    SELECT warned as Punisher, warned_by as Punished, warn_reason as Reason, NULL  as Expire,  'warn' as TableType, warn_time as Date FROM mb_warnings
    ) d order by d.Date DESC;