Ok so in a zombie apacolypse the millitary can do 1 of 2 things. 1 it can stay together and fight the zombies or 2 it can disband along with the rest of the government, this plan applies to the 2nd one. Now in the time before the army disbands you will need weapons food water and shelter.
For food I wouldn't suggest a.store because everyone will rush to them and it will be chaos I suggest a food shipping company less people will be there a lot of food
For water my advice would be to fill up as many buckets (or similar items) with water before its shut off
For shelter I would suggest boarding up your house/apartment if you live on a apartment that's not on the main leve then you should break the stairs and shut of the elevator to keep the zombies at bay
For weapons (if you don't already have some) then you should look for and police cars there should be a lot of them in this sort of epidimic they will usaly have a shotgun in the trunk or cab you probley won't find one in the first car you look in but keep looking these will work for now
Now to the fun part once you get news that the army has disbanded and is no longer functional then you will need to grab your weapons and head to the closest millitary base there will be left over weapons and maybe if your lucky a humvee or two and they will all be yours for the taking. Now withb your new millitary grade weapons you will be able to slaughter anything that gets in you way

Thank you for reading my zombie plan