One of those 4 slots will be filled by you, depending on which you queue to be. You'll be placed in a queue and get a tank, healer, and 2 dps as your party. Welcome to The Elder Scrolls Online v2.6.0, featuring One Tamriel This update opens up the world of Tamriel for you to explore any time, and play with your friends no matter what level you are. Just tab over to Veteran dungeon and select Vaults of Madness. Optional Steps: Maj al-Ragath presented me with another challenge: invoke the Scroll of Glorious Battle and defeat Allene Pellingare in her empowered state. PATCH NOTES FOR UPDATE 12 COMING TO XBOX ONE OCTOBIG CHANGES OVERVIEW.
You can also just queue for it using the activity finder. Changing the difficulty willl reset the dungeon.
You will have to be party leader or by yourself to change a dungeon this way, and you cannot change it mid-dungeon without exiting first. If you're just porting in or making your own group, it's in the group settings. (Note that any bluntness isn't directed at you, but at the ***-poor design of these daily quests that explain nothing and offer me stuff I apparently don't even have access to.) The Bosmer NPC who gave me this quest offered me the possibility to invoke the scroll. How would I even activate a 'veteran' mode? I dunno, I just entered the place normally, there was nothing about any 'veteran' or 'normal' mode offered.