Current Events > What's the name of the first-person shooter where it keeps saying 'slayer'?

(+) Yeah! (+)

My bratty young cousins are over for Thanksgiving, and they're taking up the TV in the living room playing some old first-person shooter. Every once in a while, a deep exaggerated voice keeps saying "slayer." What the hell game is this, and is it really so entertaining that they need to take up my TV to play it?
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I would assume Halo which I've never played but is the only one with an announcer I've not ever heard

Halo
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Oh god, is it really Halo? Thanks guys. I've never played this game since I never owned an Xbox. Do ten-year-olds really play this game in the year 2017?
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Only good ones are CE (1) and 2 imo

So no
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