I think this is a rosy view of what revolution looks like. Armed police won't simply all disarm on the eve of their pay drying up. There are committed fascists amongst their ranks that will fight back pay or no pay at the prospect of a proletarian revolution. To think we have no ideologically committed foes that might operate in opposition to their immediate material interests is to fall to mechanistic materialism.
The Chinese civil war was 30-40 years long with ebbs and flows in the strength of the communist aligned movement and the nationalist movement. Nothing just stopped because the red army took control of a given province.
It's bad to fight back against women soldiers, cops and security guards. With this one neat trick I will make all war and violence illegal and wrong.