There are two missable cassettes:
- kill Faran Brygo to loot Brygo Radio Call Recording
from his corpse;
- save the Hoon Homestead in the Heads or Tails mission to get Recording from Alastair Hoon
from the Hoon house safe.
You must collect all of the cassettes except Demolition Derby
before you open the door to Liberty (the point-of-no-return warning).
Below is the order in which I found all of the cassettes...Ambush Site
Peterson Air Force Base
Monster Army Bunker
Gett Family Homestead
Department of Energy Site
Yuma County Speedway