First of all, that is not Chetnik gesture. Second, I see you read a lot of internet (read: wikipedia), croatian press and croatian printed history books. Chetniks attacked Croatia? Man, educate yourself. Think for yourself. Dont believe everything your father says. You have to think for yourself.
In the end, you brought up a lot of unnecessary things up that have nothing to do with the subject of the thread. Him supporting massacre by Chetniks on a CS:GO major tournament? Do you realise what you just wrote?