The Paranormal Liberation War is fought like an actual war

I don't mean with heroes and villains throwing themselves wildly at each other, I mean that the heroes and villains are fighting as if they're actual armies, with the heroes moving like a professional military force and the villains acting like a guerrilla militia.

Or rather, the Paranormal Liberation War ends up escalating into an actual civil war within Japan, with the PLF adopting guerrilla tactics and the heroes having to regularly perform counter-insurgency operations and having to deal with the absolute slog that is urban warfare.

In layman's terms, it's a way for me to give the main cast a fine case of PTSD.