He has been vastly wrong. He has made lots of claims and predictions, on the imminent collapse of the Ukrainian state, on the isolation of Kiev, on the fall of Kiev, on the taking of Odessa, of Kharkov, on the surrounding of Ukrainian forces East of the Dneiper, the impossibility of retaking Kherson, and on and on.
The man has a very limited mind. He was a good commander of a US tank battalion. But he has never been the sort of person who Napoleon would have made a Marshal.

Yup, its funny, Macgregor supporters can't state one of his predictions that came true, while there are many times he has been wrong on Ukraine.
And his latest prediction is that russia will launch a massive 540k troop offensive between yesterday and next 7 days.
Stay tuned.
Or simply KGB got some pedo stuff on him.