That happened to me flying earlier with AI as wingman, he'd been shot down and five minutes later he's praised my shooting! Sadly I was shot down later and during that, looking behind I see the P39 firing and next to him the useless AI watching presumably

, no warning either. They still fly on your dead six where you can't see them, mind you given they now only just fly, unless you order them to do something, (with the reply, negative! negative!). lol!
The enemy AI are much better in 4.11 tho'.