One of my biggest gripes is the old chestnut about not giving the reserves equipment because they can't maintain it. Well duh! The answer is simple, augment the reserves with sufficient full-time personnel and facilities to maintain that equipment. If equipment is needed to properly train the reserves for their intended employment then the system must be design to ensure the equipment is there and maintained.
Which brings us back to the question of what is the difference between a Class C Reservist and a Regular Soldier.
I believe that the heart of the problem lies in the identity of the Canadian Army. It suffers from the British tradition of their being no army. There is a collection of local regiments that are annually authorized and that operate under the command and control of a single General Staff.
The British Army gains its corporate identity because it is regularly brigaded and employed. It is rare for a year to go by without a Brit soldier being shot at.
The Canadian Army is a Militia. And it hates that.
Until 1940 the Regular Force was known as the Permanent Active Militia, in other words a slice of the Militia that was permanently available for active service. That constituted three Infantry Battalions and a few Cavalry Squadrons.
Most of the rest of the Permanent Militia were instructor cadres supposedly dedicated to training the Sedentary Militia.
With WWI the Permanent Militia found, and lost, a voice and a role that actually converted it into a real army.
When WWII came along it was the answer to the ancient prayer "Dear Lord, let me do it again. I promise not to screw it up this time." Korea and 4 CMBG cemented the Army as an institution and separated it from its Militia roots. The loss of Army identity in Unification was particularly problematic but the Army survived and managed to recreate itself. Eventually it managed to eliminate the Militia entirely by simply calling it the Reserves - and removing it as a separate, competing entity.
But institutions don't die easy. The Militia, even when called the Reserves, still exists in thought, deed and word.
So the answer to the question of the difference between the Class C Reservist (Militiaman) and the Regular Soldier (Permanent Active Militiaman) is that they are both full time employees but employees of two separate, competing, institutions. And the Militia is reliant on support from an entity that would rather not be reminded that the other exists and would prefer that it didn't have to support it.
It sees every dollar spent on the Militia as a dollar lost to the "Real" Army, the regular force of the Permanent Active Militia.