Story mission mode is designed to be similar players to do the task to run a copy of the Blizzcon example (Note: a simple example, a copy of the non-actual launch of the): to pretend we are carrying out a profile of the three copies of the story missions,called: the Goldshire guard battle. This copy of the way it will become similar to follow the story of such tasks, it is only necessary the team from the defensive town, the next step is to become a go to save the children were taken, and the copy of the final steps to malpractices leader, the leader of the Kobold gold teeth to the beat.
As for PVE battle mode is similar to a copy, but will be designed into a more epic, and then the number is more. The players need to do here is similar to the battlefield to fight, but your enemy is not the player but the opposing camps of NPCs, a copy of the final leader of course, the hostile camp story NPC.
The same as the Blizzcon examples to illustrate (a positive real design): more than a copy of the PVE battlefield to pretend that we are conducting a profile named: Grizzlies Canyon. (The Grizzly Gulch, referred to as GG) Alliance players to deal with tribal intruders first co-operation to kill the soldiers of the invading tribes, and then destroy the barracks within the tribal base of the last final copy of the leader of the tribe Drake, Orc General. Okuyama, or to conquer the island (basically very similar, but the NPC characters to replace the player, and then strengthen the narrative)