That's not how "MMO" or "Classes" are built. The Hunter is built for PvP, but the player can make the Class excel in PvE The Titan is built for PvE, but the player can make the class excel in PvP The Warlock (seems to be) built as a mix of PvE and PvP, but the player can make them excep in both. Armor rating is not a part of Crucible, however it is a part of PvE, and in PvE a Titan's armor rating and subclass armor-boost will exceed a Hunter's. The same applies to the Warlock. However a Hunter's subclass agility will always exceed a warlock's or a titan's Hunters are not built for PvE, Titans are not built for PvP. Their abilities can simply be applied to the opposite of what seems to have been intended.