Hi,
As mentionned in title, AI trucks and AI buses doesn't have yellow lights when (white) lights are on in this game. Usually, trucks and buses vehicles have yellow lights to show their width and their height. Sides haves yellow lights too. Vehicles at night should be seen with those yellow lights.
As said in title, I also find that it lacks a sound for the brakes in this game. Buses normally have air brakes. We should hear them. (You know that: " Pshhhhttt!" when braking)
You will tell me that it is a tiny detail, but each small detail like these two brings immersion and real fun to the game. They all count.
That said, i don't mean to offend you, but i think you should really look at what's being done in American-Europe Trucks Simulator games. Traffic packs, traffic density, the sounds, the light effects, the real companies names and the real advertisements, all of this available in mods make ATS-ETS-sim THE driving simulator. When you drive on the map, you really believe it. Of course, on my opinion.
TML, You have a wonderful map. The world and its environment are fantastics. I even say it is BeautiFul! But there is NO life. Everything is generic and repetitive in Fernbus unfortunately. A clone world. Trucks, cars... gas stations... When you drive through the map in the world of Fernbus, you believe it much less compared to ATS-ETS. As said previously, look what it is done on your neighbor. They are using Unreal Engine too.
MODS is the KEY!
I love Fernbus. I've been waiting long time for a good Bus Sim... I sincerely think that you have a gem in your hands that you just have to work on.
I just want to encourage you to look at what is being done elsewhere for good examples. There is a good model.
You have the opportunity to become THE Bus simulator on the market.