That orc is extreme. If That group would have been NPCs and I would be a player, I would plan to take out his comrades first and just try to avoid him.
Also remember with the Berserker traits, he will still suffer all the effects from being broken. This does not only mean the critical injury, but also that he will fall (if broken in strength or agility) and most likely also drop his weapons. The talent only let you recover attribute points (on his next turn), it doesn't give you free actions. This mean that he will for a little while be broken. Anyone near him can move to him and perform a Coup de Grace on him or grapple him.
Also to be broken by Empathy is not the same as using the berserker talent (or unbreakable talent). He will still be broken and he will explode in a violent outburst, kicking and breaking everything around him (or withdraw). This doesn't necessary mean that he will do combat any particular foe in a controllable fashion. This is something that should be roleplayed and if the player can't do that, the GM will have to step in and play him for the duration of the outburst. It should never be a good thing to be broken. An orc can use his unbreakable kin talent to become unbroken again or those with the berserker talent can use that so they can go back into battle in a more controllable and normal way.
“I’d say thistles, but nobody listens to me, anyway.” - Eeyore