My son was stationed aboard that ship for 4 years in the late 90s. It holds about 400-500 Marines and landing crafts, as well as a few hundred Sailors. The Marines are only on board at certain times. I believe they said the Marines are on board now along with the Sailors. The ship won't have much extra room for civilians; but, I'm sure they will crowd in as many as possible. The conditions will be miserable, especially for females. The bunks for the Sailors are built into the wall and stacked 3 high. It made me think of being in a casket. I spent one day on the USS Nashville for a family cruise and I was shocked to see their wasn't one soft surface to sit on anywhere except in officer quarters. Certainly not luxury accomodations.
Lookie here:
This was MY home for a few years in the '90s as well. I sure miss it.
Needless to say, I know a whole lot about Amphibs.