now, i dont know if this is actually a secret. but I used the showtriggers_toggle commadn to see all the triggers. and then i noticed this: https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2482665559
so. i noticed this trigger on the train. i walked into it, nothing happened. Then i pressed E on it. then it teleports you back to spawn
I don't know if this is classified as a secret but i found this very interesting as ive played on this map alot and just noticed this and no one else is mentioning it!