Fantasy warfare

So for the sake of argument the setting is more akin to WWII era as far as weapons and combat doctrine tends to go. That said, you have a side of the conflict that makes use of magic creatures sort of like pic related that they let loose into a city under siege the main use of such creatures is to get as close to various enemy units and cause as much physical and psycological damage as possible utilizing a sort of illusion like ability that works so long as you don't look to terribly hard (i.e. a passing glance would have you see a woman in distress but the close and more carefully you looked at it the more of the spider features you see).

How would the deployment of such weapons shape the combat?

Suddenly, people care a lot less about civilians. If you ain't in uniform, or ain't in a designated spot (probably wearing a uniform), you ain't worth saving.

So it becomes a shoot first, ask if it's really that imortant later?

Would probably make really bad PR to shoot kids. But then imagine something shaped like a kid tearing through your squad?

I mean something like that would invariably have to back fire on the people who use it unless they just didn't give any fucks at all.

Wildbow's Twig online serial kind of explores this concept.

maybe some weird spectre-ish creature for torturing would go well. a patrolling wraith could do the trick

would the other side have access to magically enhanced stuff as well? or is this a horror setting?

"oh look a survivor"
and suddenly boneblades, exposed muscles, fangs and eyes pop out of the hood and sleeves and start tearing soldiers apart

that's how I picture that creature.

>maybe some weird spectre-ish creature for torturing would go well. a patrolling wraith could do the trick
>would the other side have access to magically enhanced stuff as well? or is this a horror setting?

It's something akin to magic resident evil. In this setting the "magic" primarily comes in the form of Alchemy and the various branches of it, one in particular being Transmogrification. Which was iffy in academic and intellectual circles at best until an entire country became the unfortunate victims of it as the ruling class were wooed by the prospect of immortality without being undead.

They are essentially responsible for irrevocably changing the environment of the world as most creatures have been changed by breeding with transmogrified versions of them.

...

>more akin to WWII era as far

1000 flying brooms night fire bombing by RWF (Royal Witch Force).

I love everything about this.