No, the escort is useless. If the Hunter-Killer hunts for transport, then he destroys the transport, and the escort safely flies to the base after that, with a sense of accomplishment. That's delirium! There should not be such a thing! If the Hunter-Killer is impatient to attack the transport, then for starters he will have to fight with the fighter guarding him. And at once with all. In the later stages of the game this does not matter, and at the start of the game there are no fighters that would be faster than a UFO, and therefore to intercept the enemy and save transportation is impossible in such conditions. Sense of this escort then?
"keepCraftAfterFailedMission:"
It is possible more in detail, how it to apply? With the presence or absence of this parameter in the "alienDeployments:" or "crafts:" no changes found.