Sort of OT: a look inside the Sgt. York
 

Ignore the civilian commentary, the author of this vid readily admits to knowing nothing about military vehicles but does make up for it with her enthusiasm for exploring.
She finds some M247 DIVADs used as air force range targets and with her curiosity set to "high", she crawls around inside a couple of them because the hatches were open.

She also examines some M548 TLCs and trucks.
Runs for half an hour but you can skip sections as needed.
https://www.youtube.com/watch?v=269MUbU1zm0