Tbh, irgc ,tiger force, syrian army etc these are not great fighters in the battlefield. assad is saved by the unexpected rise of isis. They're on their last leg when isis turned the worlds attention towards them.
The current fractured Syrian territories are a result of big powers like US,Russia and Turkey slicing syria into their own sphere of influence, not because of assad military success.
So even if irgc were to equip them with tanks, they will not matter much.
If the war in Ukraine didn't stop, Russia will continue to lose men and machine to the point where they have to humiliatingly retreat.
If Russia fails, then one building block of the so called " axis of resistance " will evaporate. And the rest of the club namely Iran, China, Cuba etc will be left to ponder if they wanted to follow Russia's path towards destruction.