Slide 9 of 10

"...as field housing instead of a 'tent city', they are the bomb. Sturdier than tents, able to be armed and armored, able to be climate controlled where needed, sealed against the environment (like sand), etc. In places where underground bunkers would be used, you bury them with 'cut and cover' contruction -- beats the hell out of local lumber and sandbags. Your generators can be protected from sand, animals, and thieves. As you have said, you can make a fort wall by filling them with dirt (I would partition them lengthwise, fill the outboard side with dirt, and use the inboard side for covered access to the topside weapons/guard stations. If 4' of packed dirt in a steel shell won't significantly slow down a kinetically driven round or detonate a HEAT round, 8' probably isn't going to help either.)

So, having them prepacked for shipment, so the Soldier gets off his transport and walks to his 'barracks' (which may or may not be the same box he always stays in, but it doens't matter because the quarters are identical), and drops his gear off, just as if there was a permanent factility long-term 'transient' barracks there. ADVON went ahead and trucked them in, set them up in the proper layout, and turned them over to the unit when the main body arrived.

Heck, if the boxes are labeled with the same Soldiers always assigned to the same box so every Soldier knows which is his, they can be padlocked for shipment with everything but his weapon and 'transport' kit (webbing and ruck maybe, or in a 'colder' deployment webbing and a carry on type bag with shaving kit, clean undies, and some books). Then the Soldier gets off the plane/bus/deuce, whatever, walks over to "his" CONEX, and pulls out HIS copy of the padlock key, and opens it up (first guy in is supposed to start the AC or heat, but he gets bunk choice! )