You're going nuts, swinging like a mad man (try typing swing while raged, you'll see it says something about already fighting with reckless abandon), so you're not really aiming so much as flailing about. Anyways, Berserkers are supposed to be crazy, balls to the wall nutso fighters that throw their whole body at people instead of bashing or grappling, just cleave through weapons with no finesse instead of disarming, roaring like madmen, right? What I'm thinking might be interesting...
Berserkers getting more attacks and auto swing while unraged (they're always moody pricks, and crazy sumbitches! Why not fight just a little crazier to begin with?). However... when they rage they swing a lot more but... have a chance to hit themselves with their own attacks, or group mates.
Things to account are dexterity of the groupmates/enemies along with the weapon the zerk is using; two flails being swung with reckless abandon? Yeah, I can see that smacking the sumbitch right in his own head. A higher intelligence or wisdom might make it harder to rage, due to a greater understanding of life in general. A FG Zerk might go nuts because he doesn't realize "Hey, just f-it man, whatevah, that root I keep stubbing my toe on is no big deal, just walk around it." and thinks, "Why does that god damned thing always grow THERE?! I distinctly remember putting that **** in back of the cave last week!" Where a human with 20 int and wis might figure "Yeah... I know it's there, it never moves, gonna step around it."
But, also, maybe Zerk's getting a skill called numb, which reduces damage until a certain amount is met. Like an extra layer of HP, but it doesn't totally deplete damage until it's totally used. Where if the zerk is hit for 20 damage, he numbs 5 of the damage. But, when he's used up his 200 numbness he takes regular HP damage. But... his own attacks can rip his numbness up.
Or, when things continue failing to go their way... they go crazier? They start losing by more and they start getting angier and angrier. So, if they are at 30% health and their opponent is at 75%... they might get more pissed cause they're still losing and get more Hitroll and Damroll added on, and more HP, but when they snap out of it... they lose all that hp with the regular rage.
Make paths more selectable?
Where, anger, fury, and devastation can pick from a pool of skills, but the skills have varying "labels"?
Anger: Numbness, Skull Crusher, Chilax
Fury: Auto Swing, Power Grip, Double Grip
Devastation: Enhanced Swing, Fearsome Roar, Bloodhaze
So a path get's all of his, along with one from each of the other paths? Devastation would not be allowed to take Chilax (combat relax) or double grip, while Anger couldn't take Bloodhaze or double grip, and Fury might not be allowed chilax or bloodhaze, as those are the specifics.
a-g