The Dark Mod 2.12 is out:
https://www.moddb.com/mods/the-dark-mod/news/the-dark-mod-212-is-here
With the new culling optimization, the last really heavy mission "Scroll of Remembrance" seems to be pretty tamed and should over over 30FPS for even the lowest-end players now ( at least in CPU bound scenarios, don't try to run it at 4K with High Quality Soft Shadows and 16xMSAA on an integrated GPU ).
Controls are smoother too with the new contextual frob to interact changes.
I plan on updating the article over the new few days.
If you have never played or haven't recently played "No Honor Among Thieves", "Alberic's Curse", or "Sir Talbot's Collateral" these have all been updated and polished during the 2.12 beta cycle so they are worth another play. Especially "No Honor Among Thieves" which now has Volumetric Light effects and has additional performance optimizations and LOD setting changes.. and subtitles too.