27 3 3Actions Report Solution Natural progression achievement, not missable. Win the Championship at Castelletto to unlock the achievement and the showdown event that will then trigger the next road trip.Showing all 3 comments. Leave a comment. This is quite obviously not a "natural progression" achievement, as there's no requirement for you to win a Championship to proceed in the campaign.Posted by Contra666 on 07 Oct 14 at 08:22 Yeah sorry mate not a natural progression achievement[Posted by stellaris749 on 17 Oct 14 at 06:42 My bad.Posted by Kaceydotme on 09 Nov 14 at 21:02 Leave a comment