Above two pics show Auscam Arktis-type chest rig hand camo'ed in DPDU colours
The 'Peacekeeper' chest rig is from Platypus Outdoors (under the brand 'Plat-a-tac') - at the outbreak of Australia's involvement in the 'Global War on Terror', they were contracted to do an emergency batch for SF but could only find Brit Desert DPM material at short notice. Hence DDPM chest rigs were feature of early SASR operations in the GWoT and DDPM 'Swimmer' vests likewise were characteristic of Naval Clearance Divers of the same period. This is hard intel from someone working in the company at the time.
Subsequently, the 'Peacekeeper' (and their other LBE rigs) were manufactured in Plat-a-tac's version of 2nd Pattern DPDU (as DoD had copyright on pattern) which were picked up by individuals on subsequent rotations.
The Plat-a-tac 'Peacekeeper' chest rig in faux 2nd Pattern Desert Auscam. Pics indicate that this chest rig was very popular.
November 2003 - Then Aust. Defence Minister visits RAAF ADG's in Iraq. Note that two sport Auscam webbing, two wear hand-camo'ed vests and one has the Desert Auscam 'Peacekeeper'.
April 2005 - Infantry Section Commander on patrol in Iraq. He wears standard Auscam webbing which has been modified and expertly hand-painted to replicate 3rd Pattern Desert Auscam. Study of pics on the ADF website would indicate that the first issues of 'Land 125' webbing in DPDU would occur later in the year.
Currently the LBE being worn is a webbing/vest system under the 'Land 125' program which is MOLLE compatible and fully modular. For more info on this new LBE see here: Land 125 ICLCE
DPDU 'Land 125' Webbing Vest
Recent pictures and discussion with serving grunts seem to indicate that 'Land 125' is not overly popular and that khaki LBE developed by SORD seem to be the preferred choice
The ADF issue pistol drop-holster and magazine carriers from Land 125 system (note that it is for a left-handed pistol!)