Staff travel is avail after 6 months on the job. Options are limited to only flydubai and EK. EK you can buy standby business, standby Econ, and firm Econ. The standby tickets are priced like ZED tickets, priced by zones. Firm Econ is more like an ID50.
I would guess that in theory firm economy is supposed to be "firm", but do you really have a better priority than an EK employee travelling stand-by on an EK flight?