Did you have to replay many times or can you play the episodes in order and get to lg?
I didn't replay a single mission.
I had to skip one of the Devidian missions cos it was bugged and I skipped Colissium cos I only ever want to do that mission once per toon for the shield at max rank (Mk XI). As a result I hit max level from completing the little "go talk to the reman" at the end of the romulan episodes.
After that i just clicked skip on all the remaining missions until I could do Assimilated for the borg console lol.