DB BR612 headlights are probably the only ones that work? Most headlights in TSW3 are wrong. Not bright. If DTG can copy the headlights off the DB BR612 in this Chemnitz route which is very good I might say and put them in the other locomotives? These headlights are the model I hope DTG can look to because I haven't found any that work. The ones on the 323 in Glossop seem bright but haven't tried it at night time. Well they 'reflect' off Manchester station anyway.
Not every single headlight is the same as the 612. They can't just copy the headlights. It actually doesn't work well on tsw3 routes because it's not bright enough. Uk headlights are instance aren't there to light up the track. Us headlights would have to be much brighter which could washout the scene and be a bright mess.