Testing a campaign I'm making I noticed that the IA is much improved.
On one mission with a task force, a AI sub attack them without any script ordering her to do so
The main ship (a cruiser) and most of the escorts turned to go away the area of the sub while the helos that were on air turned back, launched suonobys (again without any script), and when there was a contact, one of the escorts, who was heading directly to the sub, launched a torpedo.
After the kill of the sub the task force regained its course (helos included), but the escort who launched the torpedo. She remained in the area patroling over the zone where the sub was killed (maybe to make sure that it was a kill and no a lost of contact? :hmm: )