I completely agree with your point on Berserk (and your stance on Warcry) Berserk is the poor warriors heal, and when you say at low ranks.. I see -heroes- still using it as a form of 'field heal'.

What would be cool if if both Warcry and Berserk could be used as a form of way to initiate combat.
And possibly even a morale boost on warcry, considering in Sun Tzu's world, the warcry is a vital point of raising the troops morale right before a major strife.

so 'warcry target' and you initiate combat screaming and launching into the strike (possibly even only give morale boosts on an initated warcry attack)