What was this video/show called? The episode?

Several years ago I saw a show on TV showing cops going into a house after someone, but then one of the cop's face was ripped and I think he died, so the other cop runs out the house (I think bitten) and the team runs into a cop car, which is later flipped around. I heard some snarls and growls and later the cop car stopped rolling. Soon backup arrives with an ambulance and then people from the X-Files, or people who look like them, arrive and tell the cop who was bitten that they were going to contain him in a freezer or something. Anyone know if this is from the X-Files or what? If so, what episode?