Let's be honest here for a moment shall we?
Whether we are all in the world of the walking dead or in real life, we would all die. Not only in the world of the walking dead is everyone infected and gonna turn anyway, but in real life, we wouldn't survive if it's on a seven nearly eight billion people infected scale.
1. We don't have enough bullets or ordinance for that many Zeke, even if we happened to be uber-precise with every shot and explosion.
2. The bodies don't disappear like they do in video games, the piles just get bigger, and bigger, and bigger, until those bodies act as a flesh wall allowing the infected to climb over and get closer to you, eventually killing you and adding you to their numbers.
3. The Zeke don't feel pain, we do, they lose an arm, they keep coming, they lose their lower torso, they crawl. If this happened to us as humans, we would either bleed to death nine times out of ten or we would die instantly from the shock and pain of it all.
4. Food and water... I shouldn't have to explain myself, but I will. Not only during The Great Panic would the local food and water dry up quickly, electricity won't be far behind and it'll eventually shut off. The Zeke don't need to eat or at least eat as often, they don't need water, and they definitely don't need electricity, let alone sleep.
5. Other humans. The only other thing more dangerous than a Zeke walking/running towards you is a desperate human trying to survive, not only will they do anything (and I mean anything) to get what they need to survive, they will be willing to kill you for it. Think of a person who is addicted to smoking, alcohol, drugs, but on the food, water and weapons spectrum... Yeah, it's bad, really bad.
Have you ever in your life gone without food for about 12-24 hours or longer before? Just think of that pain but ten times worse because you haven't had something to eat for over a week.
In saying all this... What would I personally do to survive as long as possible?
I'd find a group of people you already know and trust, keep moving, never stay in one place longer then you have to...
If you have to stay somewhere, you set up defenses, pikes, patrols, setting up a perimeter, booby traps if you can, limiting the amount of sight the infected or enemy humans can see you so you have the element of surprise and cover.
Scavenging what you can at any chance you get, grabing anything edible or drinkable or even better, something you can use to defend yourself with or at least make something that can help defend you.
In a world gone sideways, anything and everything is out to get you and take what is rightfully yours, so if you get the chance to do something and it's smart... Take it, it may just save your life to fight another day!
