This 1.2 release fixes most of the common issues that got reported previously.
-Added missing sounds (hopefully all of them).
-Fixed, improved and expanded localization. (thanks IlDucci)
-All sounds have been revised and converted properly. (thanks IlDucci)
-Intro text font is now like the original BFG Edition version. (thanks IlDucci)
-Added missing models.
-Rechecked all maps and fixed whatever texture/light/brush/AAS/entity/collision issue I could found.
-Removed all check points and achievements entities.
-(Underground 1/2 map) Added a light models that were previously rendering like black boxes due to the model absence.
-(Underground 2 map) Added a flashlight to the sentry bot, as sentry bots in regular Doom 3 tend to have.
-(Underground 2 map) Fixed the cave chamber where you couldn't return from when you came from because of the cave model blocking the entrance from the inside out.
-(Underground 2 map) Fixed some big pipes that weren't touching the ground and were floating in a pit. (issue already present in the original version).
Don't forget to comment and report any other problems you may find.
About Dhewm 3 compatibiliy:
That's it for now.