You just need some team_control_point_round entities, one for each stage. Use the "Priority" key to set the order they're played in, and "Control points in this round" to list their control points. You'll still need a team_control_point_master to set things like team switching, scoring style, etc. (but not "Restrict team from winning," put that in the round entities instead). Then, for player spawn points, you can fill in the names of the associated round entities in the "<Team> spawn for round" keys.
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