Dunno where to put this - Plarail Video Game Train Idea

Those games mentioned already exist I think he would like Plarail models of the trains featured in the game

Exactly correct, Ucwepn. Team Fortress 2 has been around for more than 8 years now, or more than 17 years if you count the development period.
I believe TF2 needs more toy-like merchandise than just the mini-mercenaries and the action figures. I also think Plarail should try and branch out to a broader target demographic, by making more mature train sets like this.
The attention it would get from some YouTubers such as Demise would also help make Plarail more popular in the U.S.