Most type rated pilots joining BA do a shorter conversion course, unless paired with someone changing types that requires the full course. Hence some DEP joiners do the full conversion course, and some a shorter course. Its still necessary to complete AWOPS/LPC and SOP training so a minimum of 4-5 details normally on the 320/777/744 fleets
As I said some get the full course...many don't. This changed about 4 years ago
Zak