Halo Mythic

Fan-Made Tabletop Roleplaying Game

From the introduction:

Roleplaying games such as Halo Mythic provide a structure of rules that depict how to design your character and control the character within the game. Rules are provided to permit shoot-outs, powerful battles, chase scenes, and even conversations and investigations. These rules require one of two things, dice rolls and roleplaying while performing an action. Dice rolls add the factor of chance while roleplaying adds the human element of performing simple actions or narrative exploration.