I thought you might be interested in looking at Trigger not to fire with air units.
https://forums.bohemia.net/forums/topic/178359-trigger-not-to-fire-with-air-units/?do=findComment&comment=2802923
× Pasted as rich text. Restore formatting
Only 75 emoji are allowed.
× Your link has been automatically embedded. Display as a link instead
× Your previous content has been restored. Clear editor
× You cannot paste images directly. Upload or insert images from URL.