I just found this thread. I am a lifetime fan of Colorado Narrow Gauge, though not as informed as many on Trainz. In my youth, I was fortunate to have been able to Jeep and hike many of the abandoned grades of former railroads that I would read about and model at home on small HO and O scale layouts and now in Trainz. The Rio Grande Southern, Uintah, Little Bookcliff, and the three Silverton Railroads.
The aforementioned Silverton Railroads of Otto Mears by Trainz author tftlmt that I downloaded recently came with over one hundred missing assets and I spent over two weeks manually replacing the missing track. When a route is submitted, it would seem appropriate that it be submitted as a complete package, but that is not the situation, as it was designed and implemented to be far more complex and broken than this, for many reasons. The route does capture the look and feel of the Silverton area, it is just very disappointing that the nature of Trainz is that missing assets seem to be a requirement, even track which is a core element of a train simulation. It would seem logical that if the creators of Trainz can identify and mark out the missing track with white so perfectly, there should be the capability of replacing missing track as well, but that seems not to be a priority ("when something is broken, ignore the problem and leave it broken" seems to be the motto).
I prefer the procedural narrow gauge track by PhilSkene, which is too neat, as mentioned previously, for Narrow Gauge, but it does look nice. When locomotives and rolling stock look near new, why not have decent looking rail. Good maintenance lends itself to good revenue.
Best wishes with your Trainz endeavors. Despite all the grief I have experienced with missing assets, Trainz still offers a lot of fun times. Asset Management could have been handled differently, it seems. In sixteen years, there has not been one route I have downloaded that has been complete. Missing Assets is not what keeps me interested and definitely leaves a bad experience where Trainz is concerned. But then, I am the problem because my interests in railroading is not mainstream.