I now did this for v2.7.6+
If you can't want, try this (and please tell me if this is what you wanted):
open /arcade/modules/arcade_playgame.php
search for
Code:
$DB->query("SELECT champ_name AS name,champ_score AS score FROM ibf_games_champs WHERE champ_gid=".$id);
$top = $DB->fetch_row();
REPLACE this with:
Code:
$DB->query("SELECT c.champ_name AS name, c.champ_score AS score, g.opentag AS prefix, g.closetag AS suffix
FROM ibf_games_champs AS c
LEFT JOIN ibf_members AS m ON (m.userid=c.champ_mid)
LEFT JOIN ibf_groups AS g ON (g.g_id=m.usergroupid)
WHERE c.champ_gid=".$id);
$top = $DB->fetch_row();
$top['name'] = $top['prefix'] . $top['name'] . $top['suffix'];