As it stands, to get the Lightfoot Gold Badge, you need to complete an Angel of Light Travel game on Nightmare!. This seems wrong, as it means there's at least one Platinum badge - UAC Platinum - which is strictly easier to get than at least one Gold badge.
With this in mind, I'd reduce the requirement to completing Angel of Light Travel on Ultra-Violence, and if anyone really cares, add Lightfoot Platinum with the same requirements as the current Lightfoot Gold. (Honestly this is probably going to be more of a discussion point than an added feature which actually affects me, it'll be ages before I feel ready to take on Ultra-Violence in the general case...)