In the last chapter, pretty close to where the paper boats are (you can actually see them in the background in the screenshot), there's like two small garages of sort, one has a few candles, some eggs and a graffiti, the other one is closed but it has a small gap. I was using noclip and entered to see if there was something since it called my attention the fact it was a little bit open and there it was.

where did you find that beauty? It looks really good

No, even more, this is the source version of the game, not the unreal remake.

whaaa, this is new?