Could you lead last few officers
If you found yourself in Los Angeles or Chicago for example and a zombie outbreak had started around the world not just in the USA.
(You have around 500 active duty police officers because everyone else had abandoned their post)
You are a chef of police in ( major city name ) and unknown acts of violence are spreading all around the city you're in charge of protecting.
After a few days the government declared a state of emergency and the active of national guards and federal forces helped maintain order around the country.By time everyone else saw what was happening majorty of your officer quite or simply abandoned their post
Before national guard soldiers or federal military can go in. Your job is to help maintain order in the city and you have few options.
. Ditch city and go with your family
. Try to maintain order around the city as a whole
. Only protect overpopulated areas from infected
.only protect important infrastructure ( hospitals,court House, jails and ect
. Secured highways and roads to let the military in smoothly and let them deal with infection.
. Hold up and barricade in the remaining police station that your officer has under control
Edit : make things more simple in the city on what happening riots have started but after a few hours police noticed that rioters are actually eating and attacking anyone they see. After the first day of this the Government issues an emergency active all military forces national and federal military and if the state has it a state guard force too. Now your officers have abandoned only 500 remain loyal and it's your job to keep this infection from killing even more people but you might question yourself if the city is worth saving