Dark Visage/Techa VizGuard/Angelic Visage is part of Abyss "uber" armor (from test center MP patch). From Revival patch 3.1 can be looted from Moloch.
Excerpt from patch notes:
"- Moloch now can drop Abyss "uber" set armor with original look. 100% chance on kill, one from 7 pieces per class, always for current class only. All pieces have same chance for drop. Armor can have legendary, double-edged, mythic or unique quality. Level of armor is not fixed, depends on Moloch level. Uniques have same affixes like armor from Vitava"
Vitava can drop same armor with other skin. Third option is loot from Berial - armor from Berial have few modifications (splash damage on each piece) and skin from Hellgate Global "red" armor set. This skin have 3D model from old Hellgate, new is only textures. Armor set with properties from Hellgate Global is not in the Revival.
Chance on hellrift - Church yard, Paternoster Row, Cheapside and Little Britain have 15% on spawn, hellrift cannot appear on West Smithfield.
About translation - any help is always welcome. Attached are all three localization files for Revival. Files have a unicode text format. If you want, its possible to change all the texts into quotation marks in russian version. You will need a text editor that will also show you invisible characters (tabs, ending lines ...). These characters form the file format and cant never be changed, otherwise the file will stop working. Also be aware of the two types of so-called "soft spaces" that are found mainly in flavor texts and through which new rows begin.
Do not change line names ("stringid") and control characters (singular, default, [string1] ...)
Unfortunately, the final text can only be checked in the game itself.
Any questions post here, or write to me directly.