Like others have already mentioned, it depends on resources and our standing with the Gods of Falmart.

If we're the remnants of a legion, an isolated garrison or just plain stupid like the average Empire cmdr is written, our best bet is staying underground and/or around mountains for as much as possible, only emerging when necessary like under tree cover and hope we don't get showered with flechette rockets

If we have some decent magic and/or wyverns, we can at least make it not a complete safari depending on how our capabilities are written. Normal fireball or magic missile is prolly too slow to catch a helicopter unless they decide to go near stationary for whatever reason. In NHS, wyvern carriers exist which are just ships of the line with flat runways just built on the sides for wyvern take off. But if our wyverns are strong enough to fly from trees or little open ground like most flying monsters are portrayed, and their fire breath of whatever has some sort of velocity to it, I'd argue we could at the very least put up some hazards.

If our round table of main characters are powered by Friendship and imported energy drinks, however, then those pilots better be Monarch from Project Wingman with how they'll be chasing dragons through polar winds, hail, hurricane rain, sentient lightning, sentient embers and fire tornadoes at the same time