So there's being recent talks of attack helicopters becoming increasingly obsolete as the role of loitering aerial missile platform is replaced by UAVs. It would appear that attack helicopters are way too expensive to risk in combat given its high vulnerability to missiles.
However, I want to remind everyone that there's one thing that helicopters can do that UAVs cannot, it can use terrain for cover. By lying in ambush behind a hill or treeline, helicopters can lay waste to entire armored column while only exposing itself for less than minute(assuming of course that it has ripple fire + fire and forget Atgms).
I'll also remind everyone that modern air launched Atgms actually outrange most ground based SHORADS, which means that a helicopter can engage ground targets at standoff ranges pretty much indefinitely.
I actually got this by reading ZhiHu, where I heard that during a single helicopter inflicted heavy losses and stopped the advance of an entire Brigade through the careful use of terrain during a PLA exercise. The main difficulty faced by ground troops being that :
-Helicopters can positions itself over steep, difficult terrain so that ground based AA have no hope of closing the distance even if the helicopter doesn't move at all.
-Again, using hills for cover, imagine a dot 3km away spontaneously appearing over a hill for less a minute. Chances are you are never going to see it before the helicopter fires all of its missiles.
Defensive ambush missions is what I believe attack helicopter will excel at in an evenly matched conventional war, aggressively using them in over unsecured or enemy held terrain(unless it's flat terrain devoid of vegetation cover) would quickly result in huge losses. I also imagine unguided rockets and auto cannons will see little use outside of clean up operations.
Again, terrain matters, we've all heard that the flat terrain of Ukraine is favorable to the tank heavy of armies of Russia, but in practice.....Ukraine has trees, lots of them and it heavily restricts engagement and observation distances.