Quote Originally Posted by Noir
I think that skirmish mode makes the skirmishing unit retreat from the unit it fires upon - and not from all others. That was the case eversince the older games (STW/MTW).

Noir
I don't think its that, its that they try to advance to the target, but an enemy unit gets too close, forcing them to bounce until the enemy unit catches them. The HA keeps trying to get back into range, but can't do it without running into an enemy and skirmishing back, which results in the enemy unit eventually closing the gap. At least this is what i've observed happening under most circumstances.