Two bunkers for a BGA.
For instance, in a BGA, these two bunkers may be utilized to offload bulk materials straight from a trailer.
They may also be used as a place to dump bales for sale (small bales as bulk material, so to speak) or to construct a bale shredder.
It's free to use. Anyone is welcome to include these and publish them in their map or mod. =)

Thanks to Albert Wesker