just curious.

Partly, it depends on how the other mod is made. My flyers in the air use the "air-unit" target type: any turret, from any mod, with "air-unit" (or "flying-robot") in its attack_target_mask can shoot them while they fly; the rest can only hit them once they land. Flyers from other mods aren't touched by mine: my anti-air turrets will target "air-unit", so they'll work with other mods' flyers that use that same type. If you have a specific mod in mind, tell me which one and I'll check how its flyers and turrets are set up.

Partly, it depends on how the other mod is made. My flyers in the air use the "air-unit" target type: any turret, from any mod, with "air-unit" (or "flying-robot") in its attack_target_mask can shoot them while they fly; the rest can only hit them once they land. Flyers from other mods aren't touched by mine: my anti-air turrets will target "air-unit", so they'll work with other mods' flyers that use that same type. If you have a specific mod in mind, tell me which one and I'll check how its flyers and turrets are set up.

Explicitly, the funny anti air guns in https://mods.factorio.com/user/TheKingJo this guy's mods. Specificlty

https://mods.factorio.com/mod/kj_vierling
https://mods.factorio.com/mod/kj_wirbelwind
https://mods.factorio.com/mod/kj_phalanx

these ones

Yes, at least the turrets. The Vierling and the Phalanx only target things with the "air-unit" trigger target type, which is exactly what my flyers use while they fly, so they'll shoot them in the air (and the flyer they hit will fly to them to attack). The Wirbelwind is a vehicle, so I can't confirm it without testing; I'll check it when I can. Thanks for pointing them out!

yeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee because im inbstalling this my next game. 600 MODS HERE I COME