The damage reduction has historically been based off of armor stats. IE If I have a Titan maxed armor will have about 230 HP, all other classes maxed armor will top around 215. So an armor buff of 30% to armor to the high armor class will have the illusion of having a greater buff, when its just players with a better build. The health regen is just like hungering blade. As far as hitting around corners Bladedancers duck with each dash and also have blink. With the homing ability that is on all melee weapons in Destiny. Blink in a room and pull a trigger and cover does mean shit any more with them either. As far as BD and GG, see my first section on HP and armor % gain. I am not opposed to a buff to golden gun in that respect, but it still should be a 2 shot on Strikers with Unstroppable on.