AI fired SACLOS missiles (e.g. Vorona) behave like "fire and forget" missiles when fired by AI. This leads to the situation where the missile continues to track and hit the target if the gunner is killed after firing. It's a minor issue but would add greatly to immersion.

Perhaps a possible solution could be to enable countermeasure-like response behaviour of the missile when the gunner is killed? i.e. the missile could behave like the target has popped smoke and lose track. I don't know the technicalities of doing this though.

@veteran29 offered a more technically informed solution on the Arma 3 discord:

What you want would need most likely an CfgAmmo flag that tells the game to stop the missile from tracking the target after the firer dies.