Infantry has been, and always shall be, the vast majority of warfare. The government may have things like airplanes, bombs, tanks, drones, warships, etc. but infantry will always define warfare. This is why the US lost Vietnam.
The people are at a distinct advantage. The US military may be large, but they're staring down 300 million people in the United States. If even just 1% took up arms with the vast supply of weapons in the US, that's 3 million soldiers that the police stare down.
Not only that, the people are the government's capital. Everyone killed in a civil war is a loss to the government. So even if you lose an engagement, you still win. George Washington knew this. That's why even tho almost every engagement in the Revolutionary War was a loss for the rebels, they still won.
That's not even getting into the fact that the military and police is filled with people who have friends and families back home who they may not be so keen on fighting.
Let's put it this way. Tyrannical governments spend a disproportionate amount of resources on propaganda and information control. If fighting the government was impossible, they wouldn't bother. They would just be like "You're all slaves but we have the power. Deal with it."
They fear the people's assembly. They fear free information.
I didn't know George Washington used assault weapons. ---