I received a few questions about the Hesco walls I mentioned. I remember seeing them on television once, and they go together very quickly. You can find out more on wikipedia
In Chapter 38 I introduce Route Malibu. Route Malibu actually existed, and Route Indigo is simply a fictional southern continuation, just like 4th of the 4th is a fictional continuation of 2BCT. Many of the things I have written or will write about Route Indigo are directly taken from descriptions of Route Malibu.