ba.com:
•Baggage will normally be checked to your final destination, provided your journey is on the same ticket. However, if you hold separate tickets for the flights in your journey, British Airways will only through check your baggage to your final destination if the connecting flights are operated by British Airways or by another oneworld airline.
Sadly, in 99% of the cases they won't check the luggage through. Immigration delays can be easily skipped with such Meet & Greet / VIP Services. Also, that's why I'm asking what the Marhaba Transfer Service with baggage identification really delivers? ( As dnata supposedly is the organization beyond this service ) Seems like nobody of their call center agents is capable of returning my E-Mails with any explanation of which service I would really need, just random offers that differ from agent to agent. Hence, their customer service is useless. If I knew, their service would be such you have described, then I would immediately book it.
Since I'll be flying in First Class with Emirates, will I have any fast track possibilities regarding Border Control to leave the country?