how about the factions can fight over the virtue shrines? the shrines could be part of a sigil system of sorts. the factioners fight for control of the shrines, which when in control, grants the entire faction minor blessings like health/stamina/mana regen while the faction control the shrine. would fit with lore, as the order factions would receive the blessings through virtue, while the chaos factions would get the abilities through corruption of the shrines. while the shrine is controlled, only the non-factioned and the controlling faction can use the shrine (even reds in the faction).