You need a full scale operation, not dropping some teams over PKK "wartunnels" and besiege them, our soldiers have not really much cover and are within enemy territory, they know where the helicopters dropped the teams, they have all their supplies in the tunnels so they wait it out and coordinate attacks with other terrorists around on our troops.
It makes more sense to build fortified outposts, with reconnaissance equipment and scan areas where terrorists are present and coordinate airstrikes to eliminate them.