I was reading Generation
Kill, the US Marines dig a new shellscrape (they call it
Ranger graves) in almost every new location.
A shellscrape would give you some protection from the normal kind
of arty bombardment, but it's effectiveness against airbust is
greatly reduced due to its prone nature. A foxhole would be a lot
better, but it takes a lot longer to dig I suppose. If I recall,
the G.Is in WW2 dug mostly foxholes.
