I'm currently a Class B with a TT rating of 2100. I would like to aim to become a 2100 with norm of Candidate Master. What tactic rating does a CM usually have? How strong are Expert class chess players in tactical calculation?
While you cannot get to Candidate Master on tactics alone, most Candidate Masters have much higher tactics trainers ratings than you do. For example, Candidate Master Mago has a TT rating of 2602. While you should continue on your TT journey, you should also study master games, endgames, and positional play.