There is this interesting arms race here with drones and unit size, yes?
If you can get any large group together, then a drone will come for it. So, there is a balance between the size of a group and the cost of the drone that the enemy is will to spend (+ estimated failure rate).
As drones get cheaper and more efficient at killing that number of soldiers worth killing approaches 1. Meaning that group and unit cohesion at the 'front' goes to 0. The 'long term' dynamics are stunning.
I cannot imagine the psychological horror of being sent with little training (because why bother for either side) into the theater all alone without any officer supervision or buddies. You'd have a radio that gets jammed, maybe, some bivouac supplies, bad food and water, a gun of some sort hopefully, and time, terrible time. The veterans, what little there are, would tell you that if you hear a drone, you're dead already. You'd have nothing but superstition to go on. You'd just sit there in the heat or cold, waiting on a radio signal, knowing that your side will shoot you too if you 'missed' the call to attack. And you'd wait and wait. If your buddy came over, or a lieutenant, to check in on you then you're at higher risk of being droned. You'd have only your frightened thoughts to keep company and solace with.
Morale? what morale? That is carnal house. There is no 'army' in the field, you command nothing but the slaughter of young boys to an indifferent AI god.
To some degree, having AI drones fighting off against AI drones can't come fast enough.