So I watched Rick kackis idea on Border wars an I feel it could really work. As far as lore I only would change one thing; since we just became iron lords, we don't know if there are any warlords left this would make the naming of team sides easy as one would be attacking and the other defending as well as fighting off the hords that would be attacking the area of the match. As far an the game play it is well defined in the video. The loot would bring on guns sets for the iron and warlord side of this as well as new armor to comerate each.