Congrats! I interviewed with them last year so I might be able to give you some advice.
I’d say right of the bat, make sure you answers are detailed. They really appreciate that - don’t answer your questions (especially motivational questions) the same way you would in a 2 min video interview. They want you to expand.
I was asked 1 commercial awareness question so I assume you will too. Again, go into detail, and expand on your answer as much as possible.
The interview was a really good experience though, they really try to reassure you and it wasn’t at all as scary as I thought it would be.
Make sure you are well read on the happenings in the firm/elements that set the firm apart (which add to your motivation to join the firm) - it will be very obvious if you haven’t done a good amount of research on the firm - as the questions tend to link back to this!
Definitely do some reading into the different practice areas/which ones you are interested in/why they interest you/ and what sets BCLPs training contract offerings apart from competitors!
GOOD LUCK!!!!