Originally Posted by
pandaperth
Your itinerary would be invalid, but not for the reason you stated.
(a second visit to Europe/Middle East is allowed, but only in conjunction with travel to/from Africa)
The reason your itinerary is invalid is because it violates this rule
TC2 is Europe/Middle East plus Africa
TC3 is Asia plus South West Pacific
and your itineray would be TC3(CMB)-->TC2(DOH)-->TC3(ADL)