the best solution I found after finishing the game, and having a considerable loot
was to give level 3 some facilities in the base
Radio Tower
Workshop
Deposit
and have 5 gas outposts
this way you will have endless resources per day
5-6 gasolines
and the workshop dismantling broken guns, and those pieces of guns
Gasoline and Screws
to make the toolboxes for cars when they break
so with the fastest car in the game in 2 hours, you can kill many zombies, activate the horn all the time
and the more hordes you have on the map, the better
do not kill the howler, it will attract more random zombies to the horde
I made this video live on Mixer yesterday to help
is my first guide, so sorry for any mistake
Sorry for the Google Translator
I speak Portuguese, English is not my forte.
I hope they can unlock or achievement