I do hope VRC and RRMods bring their offerings to TSW to compete with DTG's.
But what general level of features do we want/need/expect?
Not every instrument/device in the cabs is working at the moment or its workings aren't in the manual.
We have now:
proper 26L automatic train brake with realistic handle positions;
independent brake that bails off;
nice instrument lights;
individual headlight and ditchlight controls, separate switches for step lights, platform lights, numberboard lights, cab lights, both fore and aft;
individual windshield wiper controls with working yank handles (
not on the GP38-2 though);
individual opening doors and windows with changing sound occlusion;
distance counters (?);
cab radios (?);
head end EOTD box (?);
brake pipe pressure valve and cut-out valve;
handle off position (but no removal of reverser handle) on trailing units;
lots of fuses and circuit breakers;
cab heater/a.c. control (with blower sounds?);
Is there a working wheelslip light?
Could be improved:
Intuitive IFD with more useful screens? accel/decel on the speedo, TE indicator, some engine parameters, train parameters like length and weight, LD/MTY, number of axles, etc;
Working LCD display on modern integrated brake valve?
We have on the outside:
Opening doors and manual start up procedure on dead and cold SD40's (do we want this on every model?);
Working hand brake wheel or ratchet handle;
Working drop steps (we need safety chains that connect between the units?);
Working brake and m.u. hoses and cable (perhaps some manual procedure of lashing up a m.u. consist, including drop steps and safety chains?);
Proper length of these hoses, the current ones are way too short to look correct!
Unknown feature:
What about the mirrors? Folding them out, reflecting actual weather and getting wet in rain? Perhaps make the upper 3/4 part transparent glass like a wind deflector and have a smaller mirror set in the bottom near the armrest?
Brake cylinder/brake shoes that move when actuated?
Hand brake chains that tighten when applied?
Folding shades, opening some more hatches and doors for decorative screenshot purposes?
Of course locomotives from different developers need to work together as intended, so a uniform consist messaging protocol is mandatory.
Strengthened bottom shelf couplers on units used in heavy drag service, I think those CSX units with radial steering trucks apply.



Also on this SD40-2?

But not on this GP38-2?

Remember there is only one chance to do things right first time around. DTG hardly ever touch up already released DLC.