Desert Strike. Sundown Apocalypse, #4

After winning the command of the Alice Springs military force, Sundown's commando is in a position to pose a real threat to the Revelationist terrorists. What was supposed to be a holiday patrol to the hot springs on the Diamantina plains turns into a nightmare for the commando, and only heroic sacrifices can save them. A startling development with the secret Pine Gap facility may prove to be a boon or a curse for their group, and for Sundown himself.
Desert Strike is the fourth novel in Leo Nix's Sundown Apocalypse series: hard-fitting, fast-paced adventure in the harsh Australian Outback. This is a standalone novel, and can be enjoyed even if you haven't read other books in the series.