Correct, but I believe we're not referring to the same multi-account user. There are two distinct ones here, not to be confused with each other.
The member you are thinking of, indeed seems to be a Pakistani holding the PGCC and their military forces in particularly high esteem. Some random trademarks: spelling Tehran as "Tehren" (first time I had seen anyone doing this) and seemingly believing that the PGCC is capable of invading the entire territory of Iran in more or less 24 hours. Also having some fixation on the "need" to eradicate Houthis even if it supposes to commit mass killings of civilians. Has been much less active these past weeks and months.
The one I'm thinking of however is presumably Arab - at least that's how they used to present themself under every one of their former handles, namely as a staunch pan-Arab nationalist from the Hijaz (with corresponding usernames). Also described as the "500 million" man by some Turkish participants, if you remember or can see what I mean. When things didn't go their way, this user got into verbal confrontations with Pakistanis on several occasions, disrespecting Pakistan and getting banned in the process (trademark exclamations under those kind of circumstances: "only on PDF", "this is a low IQ forum", and even "mods, please ban me"). Calls non-Arab Muslims "Arabized", refers to Iranian seyyed clerics as "Arab wannabes". Often mentions the Netufian culture in debates about history. Uses the term "cluster closely with" in genome-related discussions, argues that of all people Arabs are closest to white Europeans. Contrasts northern and southern Iran, trying to portray her as an artificial nation cobbled together from unrelated "ethnicities". Now is the first time, to my knowledge, that they're false-flagging as a Pakistani. But the similarities I listed are compelling enough to lower the probability of a mere coincidence to close to zero.
The latter user is displaying a tighter, less casual writing style than the former, marked as it is by a more disciplined spelling, syntax and punctuation. And has also been around for much longer. In fact visits this site periodically nowadays, often with a new account, in between longer periods of absence.
I could name several past handles of both, but this is more subtle. However, if by now it's not clear who the two users I'm distinguishing are, I may disclose some of the respective ID's upon request.