Drop Box

Drop boxes are the only intended way to transfer loot through walls and as such aren't considered an exploit at all. They have an average transfer capacity meaning having a teammate to help is recommended.

Tutorial
Place a drop box with the input side showing. The input side has a small central rectangle with three small dots. Place a drop box with the output side showing. The output side has a larger central rectangle with a handle. A completed drop box loot transfer setup with both an input and output drop box.

Tips

 * Drop boxes can serve as a backup transfer method should one of the other methods be destroyed. This could save a suicide bunker from being non-accessible.