Compact Storage Crate

Compact Storage Crate can be found in The Train. It is also found in Flathill, inside the small building on the far side of the chain-link fence at the edge of the playground.

Because it is a placed world item rather than a crafted pickup, the main point of interest is its location: players exploring those areas can reliably look for it in the train area and in that isolated Flathill structure near the playground boundary.