Archer Targeting Bugfix

[Anaris]

Several months ago, some tweaks were made to how archers chose their targets in battle, to avoid over-prioritizing the front row (and thus enabling certain exploitative formations).

Unfortunately, the fix created new problems with archers spreading their fire out far too much. Today, I have pushed a fix for that live, which should result in archers targeting their first choice as long as it hasn't received too many ranged hits already.

This should significantly improve archers' efficiency, and I will be attempting to monitor the effects of it over the next little while to make sure it won't need further tweaks one way or another.