This is a depiction of an early variant of the Nile Valley camo that was used on Egyptian MiG-21s
This livery is largely speculation as the only reference I have is a single photo.
For more Egyptian liveries feel free to check out this list: https://forum.dcs.world/topic/327590-egyptian-liveries/
Other Egyptian MiG-21s:
PFS Nile Valley camo: https://www.digitalcombatsimulator.com/en/files/3331333/
Late 80s three tones with Red markings: https://www.digitalcombatsimulator.com/en/files/3322497/
