Each of them has their individual mission, though played on the same maps. The further part of the walkthrough included the two characters available in the basic game, i.e. There's a total of 12 maps, though you need to complete them separately with each character. after completing the main story mode, side missions and finding all the secrets. I'd definitely recommend approaching them at the end, i.e. The overall rules of the challenge maps haven't changed since the first game.
