the 2019 one is darker but it is still dark, you will still never be able to have a fight that does not leave you vulnerable with less places you could go and hide in other maps. I don't think it's possible to have a fight involving more than 3 people that does not get innocents killed by innocents just due to the way the map works of for the most part only having 2 directions and the chances of someone being nearby will definitely be higher
I like the 2018 version because it's like Terrortrain used to be. Therefore there should be no problems with the map itself (but the other versions are good too)