For this achievement you must reach level 10 and have selected either Gadgets or Mental (If you have the Fight for the Light DLC, light powers will also count for a controller role) as your powers. (You select your powers on the character creation) Here are two useful videos in aiding you to 30:
Credit to Jcg GameGuides for this video:Credit to King_Titan215 for this video:Please do remember that these guides are opinions from the creators on the best way to get to 30 fast. If you need any help or have suggestions lemme know in the comments!