Okay so after George was kind enough to assist me with building a USB deployment method (which works great)
I have played around with the FZ-G1 on a docking station and I have been able to get these to PXE boot directly using a UEFI method.
It seems for some insane reason when selecting the IPV4 PXE option in the BIOS under boot override (which is 99% of the time the method I have used). It will become stuck at"ipxe initialising devices…"
If you specify LAN as the primary boot device and allow the machine to boot organically, it works… go figure?
So anyway this is now solved! Thanks for your help guys.