This is terrible advise to recommend as a first step BCMAS. That is pity ful actually. For any one who cared to give mea!ningful advise, it would be on the order of : do some informational interviews with MSLs to understand the job, by that, network! Look for companys that may be working in your area of clinical expertise where a nurse experience will be valued! My company has a couple nurses as MSLs as their clinical experience in that specific area is highly valued and they perform the MSL role excellently !!! And they're great team-players!!
Other advise would be ensure you're leveraging and communicating on your experience from working on teams - perhaps MDTs - and of course there is the science - bone up on that.
No amount of BCMAS crapola will make you first and foremost competitive!!!
If you came to me telling me I should hire you because you have a BCMAS, I'll throw your application in the garbage.
If you come to me and say, you've interviewed MSLs, you've understood the role, that you bring some portable skill sets, show me you're a great communicator and team player and you some science competencies (though no the most important, I need solid communicators and relationship builders, I can give you the science with our training program) then lets talk!