I have a new message from Herkie on FB:
"If I adjust or reduce the asset hitpoints, they will greatly affect the game events demanded by the story plot. I had set them for a reason, a technical reason. While I can't do anything in that area, I can, however, adjust some difficulty factors like shields, weapons, and afterburner recharge rate, player damage factors, AI response time, maximum attackers to player, maximum missile target to player, maximum turret lock to player, and others. That should give an edge.
Nevertheless, you just have to revise your way of fighting in The Aftermath universe. Most importantly, master close up or knife-fight combat."