MQ2Berzerker handles multiple RA's. Set all 3 RA's at the start. the the primary RA first. If I recall correctly, if RA 3 is down, then RA 2 is their new assist target. and if RA 2 then goes down, RA 1 is their new assist target.
RA stuff was only testing in a very basic environment, and I was hoping to get more feedback on raiding so that I could look into making adjustments tailored to the raiders. However, nobody has really stepped up and gave me any information. I had a review at one point that suggested that raid options were lacking, but provided me no information on what exactly it was lacking so that I could attempt to make corrections despite my asking what I could do to make things easier on them.
If you have suggestions for the Raid assist logic, please do let me know what they are so I can attempt to handle it accordingly. I am not a raider, so I'm relying on feedback from the users to help guide me in the direction they'd like to see it go.