These things are flimsy AF. Better off with tents or temp wood structures.
If you're worried about impacts on the side walls, I'm pretty sure your tent is going to be even more flimsy. Your temp wood structure might well be, too.
So how are they flimsy?
In situations where people bury the containers, they often have to weld in additional squarestock steel pillars and ceiling joists to improve the structural integrity of the roof, and the pillars often add needed support to the walls that face substantial forces from the weight of the earth
Meaning, the air inside is sucked into a bio-filter, and cleaned before released to the outside atmosphere.