Site is difficult to read with all the stuff going on, but it seems to be citing US mil AA, not Russian which is all over the ME. Don’t know if ISIS captured US gear in Iraq which was transferred to the Sinai. Seems unlikely, as stuff seems to go south to north, not the other way around.
Very doubtful that an ISIS offshoot in the Egyptian Sinai would be using US FIM-92A stingers (acquired how?), when so much captured Libyan gear passed through the area.
Also unlikely that the Russians would be able to mount any kind of campaign against any group in the Sinai; Egypt would not like it, nor would Israel - see can of worms ...
Are Stinger missiles able to reach 30,000 ft cruising altitude. Were other weapons capable of doing that likely to have come from Libya? Did Ghadaffi get gear like that from Russia? What irony if true.
PIAPS.
She was peddling those weapons and hundreds went missing while she was playing that game.