Sorry its was getting late and I made a typo
the file , DA2_Human.ka does exist at the following location : /home/colin/ut2004/DA2/KarmaData
I have noticed that when you install UT 2004 on linux the installer creates a hidden folder at :
/home/colin the folder is named : .ut2004. Inside this folder there are a number of other folders one of which is DA2, (other folders are from other mods eg Fragops and a system folder with the ini files for the normal UT 2004). Inside the DA2 folder is a system folder with several files one of which is DA2.ini and another called DA2user.ini. Not sure if this has any relavance.
I did manually extract the files using ark.
Be happy to help sort this, or any other problem out as I really enjoy this Mod