@BearTM:
The important detail for you is exactly what I added in the NOTE at the end:
"NOTE: I am also using QEMU/KVM PCI passthrough running on a Ubuntu host, dedicated server - Gigabyte GA-H170N-WIFI motherboard."
Since pfSense needs to directly control the hardware, this method will only work as a bare-metal or PCI Passthrough to the VM.
Because you bridged your adapter to the host, there is no WiFi card for pfSense to access in hardware.
Remove the WiFi card from your host (blacklist), add it as a PCI Passthrough to the VM in QEMU, and then it will work.
I tried once again to add it as a PCI Passthrough and I found out that my adapter is not 8260, it is 8265 :(
They already merged the kernel module into the version 12 of freebsd, but not for version 11.
So I guess I will have to wait until I can make this work