I have posted this somewhere before but ill post a more subtle thing. I feel that if they gotten rid of the restriction to equip subclasses on certain archetypes (IE titan, hunter, and warlock) and made those gives additional perks it would open up a new field of customization. This I know is possible to do in this game design at least (though mixing up titan/hunter/warlock armor may not be possible right now). Basically what I mean is hunter using voidwalker but having intrinsic perks as a hunter that the player could add in himself such as more speed or titan get increased hp. This would define the archetypes a little bit more. I am heavily considering this because very rarely do I use the other two alts other than for extra reward yet i want to play some of the subclasses from time to time (and not have to grind out alts). I feel this would define our already loved character and knock out the dullness in customization.