Wow, I see what you mean. A huge ambush of elves (still not all dead), so far he has 1 kill, still working on another. The macedwarf on the other hand managed I think 10 kills. This is after modifying his personality.
Personality before:
Anxiety = 46
Anger = 58
Depression = 53
Self consciousness = 40
Immoderation = 58
Vulnerability = 53
Friendliness = 56
Gregariousness = 41
Assertiveness = 59
Activity level = 42
Excitement seeking = 55
Cheerfulness = 57
Imagination = 57
Artistic interest = 69
Emotionality = 42
Adventurousness = 46
Intellectual curiousity = 56
Liberalism = 40
Trust = 29
Straightforwardness = 49
Altruism = 59
Cooperation = 50
Modesty = 56
Sympathy = 82
Self efficacy = 44
Orderliness = 59
Dutifulness = 45
Achievement striving = 27
Self discipline = 53
Cautiousness = 43
After:
Anxiety = 1
Anger = 1
Depression = 1
Self consciousness = 1
Immoderation = 1
Vulnerability = 1
Friendliness = 99
Gregariousness = 99
Assertiveness = 99
Activity level = 99
Excitement seeking = 99
Cheerfulness = 99
Imagination = 99
Artistic interest = 99
Emotionality = 99
Adventurousness = 99
Intellectual curiousity = 99
Liberalism = 1
Trust = 99
Straightforwardness = 99
Altruism = 99
Cooperation = 99
Modesty = 99
Sympathy = 99
Self efficacy = 99
Orderliness = 99
Dutifulness = 99
Achievement striving = 99
Self discipline = 99
Cautiousness = 99
Note that the sympathy was actually raised.
I then modified his sympathy to 1 and had him alone target a separate squad by himself. I have a full page of "bashes head / bruising muscle through the rope reed hood"
So far, change in sympathy is showing no better results.
EDIT: In fact, that elf escaped...
EDIT:
I made him legendary in all skills, no improvement.
EDIT:
I improved all mental traits to 2600, no improvement.
Edit:
I improved all physical traits to 2600, no improvement.
EDIT:
I improved all physical traits to 4000. He can finally kill an elf.
This is with his named steel mace.