Some more pictures from the multinational response.
These two are speculated to be DEVGRU with the backpack guy fielding a Noveske rifle being trialed as a replacement for the 416. The handguard appears to line up based on the pixel deciphering by another user:
Based on the shape it definitely seems to be a modified RC unit. I suppose it is more discrete than other options we’ve seen.
Video of Russian SCARAB system, in Iraq -
Leading me to observe that there needs to be a figure of the Russian Arid uniform, helmet cover, BA, and web gear.