exactly all you said :)
a team that dresses 2 or less players is a walkover.... its a 25-0 loss , then an asterisk (*) is put next to his loss record and in case of a tie , for example : TEAM A 11-11 wins -losses and TEAM B 11-11* , the asterick means a walkover , then TEAM A is above team B no matter what the point difference is...