Looks like the version of the FAQ that ControlledPairsGaming got included some more info than what has ended up being published. 3 Minutes 24 Seconds into the video he reveals that we'll be able to play as SoF + Iraqi Security Forces, while the public FAQ only states the SoF part. In the beginning of the video he also goes more in-depth regarding AI behaviour and procedural generation which also didn't make it into the final version of the FAQ, here's the video if you wanna check it out: