If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Class 3 Outbreak is an RTS zombie game running on Google Maps(R). Struggle to keep the zombie infection at bay with a hopelessly outnumbered police force, squash any outbreaks that appear and keep the zombie threat level at Class 1 for as long as possible. Protect thousands of civilians over a 1km square area in Washington DC, USA or Leicester, England. Keep an eye out for infected civilians, and make sure none find their way outside of your police unit's reach.
Screen Movement: W,A,S,D or Mouse key Click/Drag.
Police Movement: Single click = move and stop to attack zombies. Double click = run and don't stop for zombies no matter what.
Attacking: Move within range of zombies or click on them.