As someone who now lives in the Far East, out of interest I looked up more about Ozwon's comments.
I had never heard the word that he referred to before, but after some research it's right that it was/is used as a racial slur against Koreans and Vietnamese following wars there. And can also be used more generally against all Asians.
The name is ? and can be romanised in more than one way. One of which is 'gook'

. It can also be romanised as 'kook' or 'kuk'.
I seem to remember names in the game are added to a database by mods/GMs or maybe the boss . I'm sure this was included innocently not realising the meaning. I also had never heard of it. I'd guess it's more common in USA than it is in the UK..
I suggest, if possible, whoever can change names in the database alters it to 'kook'..