Want to get a list of modifiers for activities? Turns out the DestinyScriptedSkullDefinition (which is one of a couple new databases in the manifest), now provides you with a list (or at least a partial one) of "skulls". At the moment it looks like there are a few missing...This might be that "scripted" is referring to Arena Challenge modes and the exposed modifiers are all the ones currently being used. [quote]{ int skullHash, string identifier, // eg SKULL_{nameInUpperCase} string skullName, string description, string iconPath }[/quote] Missing modifiers I believe are Heroic, Epic, Nightfall. The icon resolution is also much lower than the skull icons stored in the ActivityDefinition, but this definition exposes the hash/id and the skullIdentifier. It is also worth noting that quite a few of the Weekly Heroic / Nightfall Strikes have swapped out old modifiers with new ones (though sadly still a lot of Lightswitch...). The only new modifier I haven't tried myself is Melee Damage Boost which sounds like Lightswitch+Brawler :p