BG's MAN-DAC is a direct service, but the LHR service routes via DXB. Logic?
Half way there.....
Wed BG015 / 016 DHA-LHR-MAN-DHA
Sat BG017 / 018 DHA-LHR-MAN-DHA
Sun BG005 / 006 DHA-LHR-DHA
The odd DHA-DXB-LHR flights are extras on the A310 which can't apparently make it direct. It's worth remembering that MAN used to have a daily direct B777-200ER serving MAN-SIN, the current situation is a large drop in capacity with an added stop, but is much better than having the route dropped.