Berlitic gimmick is to present himself as a reasonable former military man, while putting his spin on presenting current anti-US talking points. He is a classic tankie and useful idiot. Which side the US is on, is always the wrong side because the US is supporting that side.
Reality and basic reasoning skills are selectively discarded when they become obviously problematic. If what he has been saying all along is right, then the entire Ukrainian armed forces were wiped out months and all Russia has to do is drive west and occupy the entire country. The same goes for Scott Ritter, Macgregor, Gonzalo Lira, Lee Camp, and everyone else repeating the same Russian talking points.
Here is a easy way to evaluate anyone talking about Ukraine:
If they say Bakhmut is critically important to the war they are the lowest grade pro-Russian shill.