I was farming crucible rep and marks yesterday with a friend and we had an idea. Why not add enemies to a pvp playlist. Similar to the battle that happens during a public event. Somewhere around the 2 minute warning, something cool happens and enemies (specific to the location) start coming out and fighting each other, fighting you, etc.. All the while your still trying to take the control points. These matches would generate the same pvp rewards while adding a pve element like 1-2 marks or something.