This is urban warfare. They are not in their mountains anymore. They can't use their guerllia tactics here.
They are very much in the mountains, and they are mostly deployed out of Turkey at this point.
All the pictures I've seen from dead PKK fighters in the urban districts showes they weren't youngsters. They probably fled with their families. The Turkish security forces have the overhand here. PKK fighters get cornered street by street till they are finally neutralized.
The PKK are still using IED's against Turkish forces.
https://www.youtube.com/watch?v=2tt1cl1Yo-k
Also, the Turks famously throw "PKK" around as label against anyone they fight, often making absurd accusations (like when the government suggested that the PKK had cooperated with Daesh to bomb some HDP members in Ankara).
Playing the whole "the Turkish government is aiding ISIS game" is bullshit.
It isn't bullshit. There is tons of evidence that connects the Turkish state with Daesh long before Russia began making accusations. Hell, to this day, RIGHT NOW as we speak, traffic (some of it carrying oil) flows through Daesh-held Jarabalus, Syria, which is on the border, and Erdogan and his government has done nothing to stop it while it blockades Kurdish-held areas in Syria.
That says everything right there.
BTW, even the US knows about the Turkish-Daesh connections: http://www.businessinsider.com/links-between-turkey-and-isis-are-now-undeniable-2015-7
Over 10.000 ISIS militants have been captured already trying to get over the border or by raids and then there is the shelling of ISIS positions and provided air-bases.
Oh, rubbish. Turkey hasn't done anything notable against Daesh. But do you know who has? The YPG, who Turkey labels as "terrorists." Hell, Daesh has killed over a hundred people in two separate bombings inside Turkey, and Erdogan's response was to bomb the PKK.
Recenly they shot at a school over the border killing a little girl. You give me Russian propaganda like rt as reference. I'm sure there are weapons that landed in wrong hands though, since the Turkmen militants also work with al-nusra.
Turkey has no credibility when it comes to fighting Islamic terrorism. In fact, if anything, it, meaning the AKP state, aids and abets jihadists.