What's a good Halo 3 machinima idea, and what plot idea should I use?

[Steve-O]

I was thinking a cop machinima, but I can't decide on actors or music. Leave your ideas, music ideas, and gamertags in the answers so we can make a police machinima.

 

[Joe xXx J]

make one about a loose cannon cop who doesn't play by the rules
Thye cop struggles with his temper and risks losing his job, his life! (job is his life)
A killer is on the loose killing political figures and only the cop can stop him!