Supcom or FA or both?

Do i need both supcom games(normal and FA) to play FAF?Or just FA?

Just FA.

And on Steam, not anywhere else

"Nerds have a really complicated relationship with change: Change is awesome when WE'RE the ones doing it. As soon as change is coming from outside of us it becomes untrustworthy and it threatens what we think of is the familiar."
ā€“ Benno Rice