Now hold on.... if someone who lost a CoD game did in fact call in the SWAT team on the victim's actual address, that would mean that either the caller knew the victim personally (in which case, why wasn't the caller immediately identified by the victim?) or the victim willingly gave his personal and address info to the caller (very unlikely).
No way that he could have traced the victim's IP address through a multiplayer CoD game - they are both connected to a server and the server doesn't share players' IP addresses with each other.
Sounds like the far more likely scenario is that the "victim" actually made the call himself as stupid prank, and then tried to shift the blame to "some sore loser who traced my IP with hacking magic on the internets!"
Sorry, this story smells. And I'm sure the cops were thinking exactly the same thing, and we're probably going to see a followup to the story confirming this.