I am not sure where this post should go but I would like to know how "First the mules" challenge is different from "Low Levels First" challenge. If I am not mistaken this might be one of the hidden challenges that were mentioned on the Community website. If so it could very well be against Ankama policy to discuss this matter as being a "spoiler".
The question I am asking is what conditions must be met in order to complete the challenge.
Comments and suggestions welcome if an official answer is not possible. Mods/Admins my apologies if this is not in the proper section. Please let me know if you move it please.