I have the Enamel/Alkyd Disruptive Pattern Paint (DPP) for my truck and the full list of colour codes are listed below.
342-1166 Camouflage Green
342-5265 Camouflage Brown
342-7165 Camouflage Black
342-5239 Camouflage Pilbara Brown
342-5726 Camouflage Light Tan
I had guessed, as your Green, Brown & Black codes have the same end codes, that the Pilbara Brown in PUP would be 601-5239 and Light Tan would be 601-5726, but it looks like that's wrong.
Searching the paint codes I got:
601-1166 Camouflage Green US Fed 595 # 34088
601-5265 Camouflage Brown US Fed 595 # 30219
601-7165 Black US Fed 595 # 37038
601-8357 White (Interior) US Fed 595 # 37875
601-9074 Barthane Hardener (Part B)
So it's a 2-pack paint but seems to only come in those 4 colours.
Is the original paint on these rovers Enamel or Polyurethane 2-pack?
Oh, here's a link to the Tech Data Sheet.
http://www.ppglic.com.au/uploads/tds/601_Barthane_Barrier_Colour_APAS0154_3.pdfGreg.