OK, speaking of insurgencies and their opposites, here's an analysis of the Syrian insurgency's structure and tactics.
There's a visual clue to the state of the insurgency on the title page, at least as this applies to the time the photo there was shot. There's a fellow half in shot on the right, weilding an AK variant and wearing loosely assembled fatigues, but also with a scarf round his neck in Syrian colours which looks very much like his mum knitted it for him. One hopes that both are OK.
More generally, the aim seems to be to seize and hold multiple parcels of territory in order to stretch the resources of the Syrian armed forces thin and maintain a presence in said areas even after urban centres have been retaken. This is probably a function of the autonomous nature of the fighting groups - they apparently 'share the brand' of the Free Syrian Army, but not much more - and also maybe a response to the Hama massacre of 1984, when Assad senior was able to crush the head of the uprising because the Ikhwan concentrated the bulk of its forces in one place. Most of the contested/liberated zones are near Syria's western border, presumably because that's where most Syrians live, but also perhaps because it makes parts of Lebanon and Jordan available as rear areas for regroupment and resupply.
The obvious disadvantage to this strategy is that it also stretches the opposition forces and means that the Syrian army will make up for in heavy weaponry what they may lack in manpower. There's also the ethical issue involved in seizing territory you cannot hold and then retreating to leave the population to the mercy of Bashar's boys. However, if we assume that well-publicised civilian massacres generate pressure for foreign intervention - and an increased supply of weapons and volunteers from elsewhere in the region - then this might be considered an acceptable risk, especially if it further alienates the civilian population from the regime.
There's some fascinating stuff about Iraqi volunteers in the Syrian insurgency. The typical path seems to be ex-Sunni insurgent against US forces, former member of Anbar Awakening, current volunteer in Syria. The Syrian uprising also seems to be inspiring more guerilla activity in Iraq itself.