how to download halo 2 for free?

every where i go i cant buy halo 2 so how the hell do i get the free trial i tryd google and evrything nothing wrked im pissed because even gamestop didnt have it i go to my friends dorm to play halo 3 at the night man im lucky the officers never caught me so nyweays im pissed

juss keep looking

otherwise download halo1

off of the Microsoft download website

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