Damage Tracker

I want to make a trigger which tracks all damage done to a unit from each player and sets it to a real array ( DamageRecieved[X] )
Im using WEU and i noticed a few interesting events and actions, but thus far I've been unsuccessful. What am I doing wrong?

Here's the trigger:

And attached is a screenshot showing the result.

Any unit takes damage does not, I believe, work.

Yeah, I think I've been trying to debug this before in some thread, the specific unit event responses just don't seem to work with this WEU generic event.