here is how you get the achievements for campaign the easy way lol
Copy 00a_introduction 14 times, rename each copy to the name of every other map name for single player. (move the other single player maps into another folder)
then once you have renamed each copy of 00a_introduction to a single player map, start the game up, go to campaign, start at legendary and start it and watch the achievements roll in...lol if you don't have the Legendary available, play at normal first and then go back to start the game at legendary*
you'll get the single player achievements in about 2-5 minutes lol