Terricon artificial mountain in Avdiivka if captured by Russia can have advantages but Ukraine will use Himars anti personnel packages over it and cluster artillery rounds continiously so holding it would be much more difficult. Instead Russia should use cluster ammunition-air dropped anti personnel mines etc. by mlrs and air launched systems extensively to cover all of the top surface of the artificial mountain making it unusable if not much more difficult for Ukr infantry to make scout drone-attack missions. Nepalm is an option as well for area denial for that specific target.
Airplane dropped Tos-1 style thermobaric bombs are also possible for those types of military fortifications like Terricon. Even unguided is sufficient since it is a large target but the requirement is to not to lose planes it should be dropped from high altitudes. If Ukranian presence is reduced there significantly VDV can make a paratroop operation but still risky since the troops need to dig in inside the mountain to be protected from Ukranian himars and cluster artillery counterattack. If they can dig inside the mountain the troops can make scout operations against Ukranians later on.
Instead of continious attack that results in high casualties tactical advances and retreats in the pincer area can gradually weaken the support inside Avdiivka which can be taken gradually by separate assault teams inside the pincers.
One thing Ukraine can be given credit for other than their usage of fpv drones is their use of drone-coordinated artillery strikes. After destroying sams second target should be taking out Ukranian artillery from high atitudes by drones-or drone coordinated artillery-mlrs. Mohajir-6, Forpost and similar systems that can fly above manpad reach(6km+ atltitude) come into scene in that second stage to detect and destroy Ukranian artillery after sam defences are neutralized. Before Ukr artillery capability is reduced sending in infantry would result in much more casualties. Holding ground after artillery is taken down would be difficult as well but Russian forces can temporarily hold the pincers and make tactical retreats(mining the area) when Ukraine brings in more sams+artillery then repeating again step 1-sead and 2-anti artillery missions then close the pincers again(demining the area). During those temporary pincer control over Avdiivka supply roads Russian army, Wagner and other forces can storm the city inside with less risk from Ukranian artillery+drone support as they will be dealing with the pincers and take control of areas gradually inside Avdiivka.
