My rifle company was once sent to Camp LeJeune, NC. When we got there, it was discovered that the barracks we were supposed to use were already in use by another unit. Oh, No, What to do!? Well, not a problem. We all had our home away from home (field gear) with us & all we needed was a place to be. So we marched to a field, set in, put up ponchos for shelter & got out the c-rats. Instant housing, no barracks necessary. So, if you have the right stuff, you don't need a superdome to evac to.