Just popping in to say racism is about more than people hurting/being mean to you. It's also about the systems of oppression that operate throughout our (in my case, American) culture. White people can't be victims of racism because racism is about more than people hurting you; it's about institutions, stereotypes, and culture seeking to bring people who look like you down or keep you as less than. It's about privileging the history of one dominant ethnic group over all others. It's about erasure and faulty assumptions, even the ones that sound good ("I don't see color, I see people," for example, becomes a method of blaming victims of, say, residential segregation or white gentrification, on people of color or ignoring the fact that it happens entirely).
White privilege is about not having to notice or think about this or be affected by it. It's about having an entire history and culture of a nation dedicated to raising you and people who look like you up. White privilege is when a white kid in my class complains to me that s/he can't write about her/his culture be s/he is white (as if whites have no culture; it's American culture! It's the culture of western Europe!). Racism is about normalizing whiteness so that everyone thinks white people are the standard.
In summary, racism isn't just a character trait or something; it's participation in certain systems of power that privilege ethnic groups (or folks who resemble the dominant ethnic group) over others. That's as far as I'm willing to go, because I'm not on the clock and there's so many books that have been written about systems of power (Foucault), the damages of racism (bell hooks, Frantz Fanon, Audre Lorde, and so on) that it doesn't make sense for me to do a dissertation on it in an internet forum when a library is a car ride away.
People who think it's possible to be racist against whites, particularly in America or Western Europe, are hilarious to me.
And to be on-topic, military shooters are so boring and stock it gives me metaphorical gamer blue balls. And I used to enjoy shooters on the PC, too (though I was awful at them). I'd love to see this fad/genre die so we could get some fun in the shooters again. More Perfect Dark/Goldeney/Unreal Tournament 2004/TF2!