Great idea Bungie for the Lighthouse. For PvP end content you put elemental primaries only at a place for PvP only lol. Elemental primaries do nothing in PvP and you put them in for going 9-0 in ToO. I think it's funny what Bungie was thinking on this one.
Note: I'm not complaining, I am just joking about how Bungie puts things that only help for PvE in PvP end content. I have been to the Lightouse 15+ times so I really don't care what the rewards are especially since I have everything I want basically.