The IRGC has had the favour of the Iranian regime for years now, and have enjoyed the increase in funding & power over the regular military in recent years.
If thats the case for the IRGC, then the regular military pretty much doesn't exist as a force to even bother with.
Them taking over some hospitals & claiming them for their use only doesn't surprize me. This I find believable.
I suspect this isn't the case though. Iran has plenty of money available to equip it's IRGC - they have helicopters, flying boat things (pretty flippin' cool btw) and apparently even Kilo class submarines. With the constant tensions with it's neighbours, I doubt they cheaped out on their ammo budget...
Maybe having the regular Iranian military & IRGC fight each other was part of the calculus? Or at least a possibility that was considered?
(What that would look like in the bigger picture I haven't the faintest idea)
...
I haven't even considered the food security part of this