Nazmir.
That stupid Submarine ending quest is horrible. The aim is terrible, the Jellyfish and Landmines do not give enough completion per hit, the actual objective is WAY too far away.
And in War Mode, it’s WAY too easy for Horde to camp the Alliance. You HAVE to load the Submarine from a specific point AND you get ejected from the Submarine at the exact same point.
ANd on the Horde side, one of the Airship quests has a fun habit of bugging and not actually getting you up to the airship, leaving you to fall to your death or landing in the bottom of the airship, meaning you have to jump and hope you can click the rope fast enough or you die from fall damage.