Rule 1 - Cardio

Rule 1 - Cardio is an achievement in. It is awarded when the player unlocks the Fitness Skill (meaning, when they reach Rank 24). It awards 25 upon unlock.

Triva

 * "Rule 1 - Cardio" is a reference to the 32 "Rules" of the movie Zombieland, of which the first "Rule" is "Cardio".