Yep, this is old. Had it for my avatar on Military.com for a little while. Looks to me like some spec ops recon got into their mortar supplies and slipped them a couple doozies. We used to do this with their AK-47’s too...among other items not Politically Correct.
However it is done, be it counter-battery, hot tube, or sabotage works for me.
I just love these morons going “Allah Fubar” “Allah Fubar” “Allah Fubar” BOOM “Ahhhhhhhhhhhhhhhhhhh”