This afternoon/night we comlpeted Barad Guldur T2 until durchest (included Durchest) me and halle and also the twins . We cleaned all the npcs until the bosses alone and then also we killed durchest and twins. Maybe we could do the challenges but we did not want to take the risk to wipe. I think is a good archivement for capi and champ. Here some screenshots.
Here when we arrived to the top 1st floor.
And here when we killed Durchest
Here cleaning until the twins:
Here the twins: