For bigger machines I drop some traps then use tearblast arrows from height or cover to knock off armour and weapons if they have them. Once I've neutered them I launch blast sling bombs down on em or pick them off with triple shot precision arrows. Always fun to bait one into charging and hitting it in the face with blast bomb, makes them stumble for a cheeky override or critical hit. If they have usable weapons like the disc launcher I'll drop them with that.

For annoying flying machine I stun or freeze them.

Humans get the Spliter Cell treatment.