Ok, so this achievement is for completing the training on map building.
From the main menu, move to the right and select Snap Maps. From the next menu page push RB to move to My Snap Maps.
From there complete the 4 snap academy basic training levels, plus then the 8 advanced levels. To track which ones you have done, they go green with a tick once completed. Once you have done all 12 the achievement will unlock.
As a guide it took me about 30 mins. Good luck!!