why is he considered a archer class anyhow!? i mean shit he looks more likea knight to me

Gates of Babylon.

Basically anyone who has high-enough stats and has some form of long-range weaponry can be chosen as an archer-class servant... from what I understand anyway.

But eh, doesn't this image need a jpg_artifacts tag, even though it's png?

Careful here, you're treading on thin ice here. I wouldn't want to ban anyone because they forgot [ /spoilers].