Israeli analyst Shlomi Eldar has a sobering assessment a Al-Monitor's Israel Pulse: "Hamas: the first Palestinian army." While the title may underrate the operations of Fawzi al-Qawuqji and ‘Abd al-Qadir al-Husseini's forces in 1948, it does notice the increasing professionalism and fighting skills of Hamas, even if their tactics remain objectionable. For one, Israel's casualties among the IDF is already much greater than in Operation Cast Lead in 2008-2009, though Operation Protective Edge has not lasted as long.
In fact the growing number of non-state actor and irregular forces showing professional skill is a subject of interest and, for state actors, perhaps a cause for concern. Hizbullah in Syria has reportedly borne the brunt of some of the heaviest fighting, surpassing their Syrian regime allies. ISIS (or the IS, or the Caliphate, or Da‘ish, or ISIL, or whatever they are today) managed to collapse several divisions of the Iraqi Army, capturing heavy weapons as it did so. The "asymmetric" part of Asymmetric Warfare may be disappearing.