But the weapons we can legally possess make obtaining the weapons you cite possible through guerrilla operations where small arms are effective. Weapons like those legally obtainable in the US ARE essential to any armed insurgent movement.
The most common charge in IED's during 2004 was the 155MM HE round. Procured through stealth and force from ASP's that were being guarded by coalition forces.
Small teams of badguys using wit and firearms to get capture the big toys.
Small Arms are the material foundation of any U/W campaign.
I will concede the point that small arms are essential to an insurgent campaign, but most successful ones have recieved outside assistance, externally or internally. The mujahadein were not too sucessful against the Soviets until they started obtaining heavier weapons from the outside. The same can be said for the Iraqis, where I would argue the ease of insurgents obtaining heavier arms was a result of poor security of the huge amount of Saddam-era weapons (probably an impossible task to guard, there were so many of them) was more a factor in than their possession of small arms.
One of the few 'successful' insurgencies that does relies mostly on small arms and homemade bombs is the FARC. But thier success has been severly stunted, even at the height of their 'success', by the fact that they did not have more sophisticated a weapons. They constantly struggled against the Colombian military's dominance of the air, against which they had no effective arms to counter.
Correct me if I am wrong but those weapons are Light by definition. Their effective employment is good tactics and doesnt make them Heavy. None of those weapons are crew served nor require fire direction.
I knew I would get in trouble with that.....I was going back to Statesman's claim that the example's he cited were good ones to argue for the Second Amendment. All of the real examples that he cited utilized much 'heavier' weapons than what is legal today in the US. Without them, they would have been nowhere near as effective. Which goes back to the argument that you and Wink put forward, addressed above......