GMDX wasn't good enough. We have returned. In the process of extra QA ideas came forth, ideas supported with reasoning, ideas that stay faithful to the original design. Ideas that improve what is perhaps the greatest game of all time. This was always the intent with GMDX but it didn't quite make the grade; catering solely to veteran players and released in a not quite polished enough state. This is currently being addressed to make GMDX the definitive campaign mod in combination with HDTP & NV.
Quelle: