It's really simple to be honest, just complete the following games and you will have unlocked the achievement.
1- Bounty Hunter Pursuit
2- Discovery on Kamino
3- Droid Factory
4- Jedi Battle
5- Gunship Calvary
6- Count Dooku
They crescendo in difficulty as some of you might struggle on either Droid Factory, or Jedi Battle. I found all of these easy though.