How do you incorporate magic into war tactics in your setting?

But they don't? They rip you to shreds, instead.
The only person panicking under any of those three is a completely untrained conscript that didn't even finish basic traning, aka the very way how to get deployed in the first place.

Unless you are taking your knowledge from le ebin war movies, that is.

depends on the mechanisms and power of magic in your settings and the technological level in your setting and on the culture and relationship amog the various races in your setting.

Are you at least semi-aware what kind of crap needs to start rolling for people to get PTSD severe enough to get them inactive AND FOR HOW LONG?
That goes without stating the obvious - trying to apply real situation to not just invented, but outright fantastic scenario.

He asked about YOUR setting, user, not how to handle it in his.

I don't actually play games

Mostly for logistics and planning, but also to counter the magical fuckery the enemy may bring to bear.

Offensive tactics: Kill The Mage First At All Costs
Defensive tactics: Protect The Mage At All Costs

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right, we're not talking about machineguns. we're talking about fifteen foot tall demons appearing and pulling people apart, waves of acid melting people's skin off, people's bones climbing out of their bodies and laughing, etc.

also spells that can literally force people to panic, as the spell effect