CoD is probably not the best comparison as its geared almost entirely toward PvP. There is never a huge outcry from the community to produce more PvE content. A more appropriate comparison might be an MMO, notwithstanding the fact that this game does not require a monthly subscriptiom. That taken into account, the amount of content delivered in "A Dark Below" is considerable, however, it is without a doubt still subject to the lazy plot and boring storytelling that has raised the ire of the Destiny PvE community. People are frustrated.