The formula that Activision's established with the Call of Duty series doesn't seem to be going stale, but it's not without its critics. There are those who would like to see some changes to the modern warfare framework that the series has been using since 2007's Call of Duty 4.
That's where Call of Duty: Police Warfare comes in. It's a fan-made pitch trailer -- meaning you can disregard the voiceover's talk about this being an Activision thing; it's not -- for a downloadable multiplayer game in which players step into the boots of either an LAPD SWAT team or the criminals they're tasked with stopping. Neat ideas, even if they never happen.
Remember though: *this doesn't actually exist*.