I'm not an expert by any means but I do know a thing or two about surviving.
This is a noobs guide and is meant for noobs, if you're a vet then I ask that if you feel something is off to correct me and I'll edit the post
I highly recommend you read this whole guide before starting then reading it again as you do it.
Day 1
You want to spend 95% of this day gathering rocks and wood, mostly rocks. (Do not get wood from trees, only log piles. It takes to long to get it from trees and wastes to much hunger) You also want to kill two pigs or three small animals (chicken and rabbit) Try not to walk into rads, there are normally zombies, players, and hostile animals. What you want to build first is a stone hatchet, shelter, door, and hunting bow. Those are listed in order of importance. The hunting bow will primarily be used for hunting animals, not players. (Unless you're a badass then by all means take out some bandits with a bow) If you're not a badass with the bow then start by learning how it works by practicing on animals like dear, pigs, and chicken. This task normally bleeds into day 2.
Day 2
You want to use the bow you made and gather food, your primary targets are still dear and pig until you have a feel with the bow then start going for wolfs, bears, and zombies. (Wolves take two shots, bears take four shots, and zombies take 1-2) Keep gathering rocks until you've got enough for a furnace, while also gathering wood. (Do not be quick to use all your stones on arrows, you need a furnace) Food, rocks, wood in order of importance. during the night if you've found enough rocks make a furnace and start cooking metal fragments and sulfur) This task may bleed into day 3. If you have a lot of cloth from killing animals all day start making yourself some clothes. (preferably vest and pants to keep you from getting cold)
Day 3
With the metal fragments that you've made and the wood that you've been storing you can now make a hatchet. This gathers 10 wood per hit on a wood pile. Today you start making the foundations of your base. If you had enough metal fragments for a 9mm then go ahead and make one, use the rest of your fragments for bullets (9mm bullets are made from gunpowder and metal fragments; gunpowder is made from sulfur and charcoal) Use this gun only for emergencies like other players, bears, or wolves in packs. (Players take four hits unarmored, bears take 8 hits, wolves take four hits) Wood, cloth, stone in order of importance.
Day 4 - Infinity
Do what you think needs to be done now. Think you need a better gun? Try going to the town with your trusty 9mm and try and find some blueprints. Kill zombies all the time and see if you get a research kit. Finish your base. It's not about survival anymore, it's about living how you want to live. Go and save people, go and kill those people who needs saving. Who cares? (Probably the guys you killed) By this time you should be ready to make it out in the scary world of pvp and maybe even stand a chance.
Additional information
Research kits: This will be your best friend. They can be used over and over without losing them and are used to learn how to craft things without a blueprint (So long as you've got the item you'd like to learn to make) I HIGHLY recommend you use one of your paper to research paper so you'll never run out of paper to research with.
Hunting bows: These are going to be your primary weapon until you find and/or make an assault rifle. By that point your primary weapon will be the 9mm, while only using the assault rifle for emergencies.
To lost animals: Ran into a horde of zombies, a pack of wolves, a flock of bears? (Yes a flock, because fuck you that's why) Well losing them might be tricky, bears you can just run for a minute and they'll loose interested. Zombies and wolves however, are harder. The best way I've found is to try to get them stuck on objects in the game and get your happy ass out of there before they can get unstuck, thus, loosing interest.
This guide will not guarantee you'll survive 100% but it will make sure you don't die from causes that could be helped if the right repercussions were token.
This seems really useful, but what about when you enter the server at night, do things change, given that you have such low visibility? Make sure you outline that.
Edited:
Shacks are waste of time. What you want to do fist 20 minutes is go into rad zone, get p250, learn every blueprint available, then shoot some poor bastard, and build 1x1 somwhere really hidden.
Rad zone can be a large risk to a new player. Shacks are easier to build than a full house too, but it still gives you some shelter and somewhere to hide out. you are wrong, all wrong.