This one might be difficult to answer since I don't think anyone knows the inner workings of Destiny's mechanics yet, but it's worth a shot. Say I changed my Warlock's stats to have the maximum armor or "toughness" rating possible though Arcane Spirit/Force and Divine Order. A Titan does the same through Titan Codex I or II and Titan Codex IV. Both subjects have an equal defense rating. Are they equal in overall damage resistance though? Is there anything I'm missing? Is toughness how much damage one can take, or is it health? Is defense rating shields or damage resistance? Sorry, I know one question at a time is easier, but then it turned into lots of questions. Maybe the simplest version is: Can one class be just as tough, fast, or recover as quickly as any other?