Have you noticed the system cheating during battles at least in the sectors?
I just had a sector battle and it is very noticeable that a Jag retaliated in concession. First he was attacked by a Howitzer with 2 HP left (which he killed in return), then right after that a Lancer with 1 HP came rushing which he also slaughtered.
I know that a unit that has a retaliation ability is only entitled to hit back once, then it is free for all. This one though is a different story, or seemingly.
It's one counter attack per round. Lancers go before howitzers, so it had to have started a new round before the lancer went; thus the jaeger's second counter attack was the first attack on it in the new round.