Here are a few screenshots of the new and improved outbreak event.
http://min.us/mbp6A4Fbwii42M
The play style is similar to the one we all know, but with some cool additions.
For those coming from other server,
Everyone starts off as a swat member. A few of them get infected, the swat must use what they have to survive this zombie outbreak. Swat can move furniture and items around to create blockades, zombies can destroy them.
If all swat are dead, zombies win. The swat wins if they survive the time period and get saved.