I tried several things out when I first started the game - but this is what I found that works best for me... I am recommending it, because this process allowed me to start really enjoying the game when I learned the depth and everything you can do. I just found the game a a bit overwhelming when I tried to build bases from scratch in the beginning. I also found it challenging to build inside a house or another POI as wondering zombies made my life a challenge.
The way I got around this was I started to build on top of POI's. I always looked from stronger buildings (not wood) with ladders to the top (Buzzes Bar, different one story stores, etc). Day one - I would do the starter quests, search and find one of those buildings, climb on top and clear the roof, then break the bottom two rungs of the ladder (you can still jump climb it). This gave me time at night to regroup, plan out, look around the UI/skills, etc. Now - I start the game and build my own base from day 1, but I recommend doing that a bit later on...
I also recommend downloading and installing an inventory sorting mod. As you advance you will have a bunch of different items, so it makes it really easy to open a storage box - click "deposit to fill stacks" and move on... Manually sorting take so much time. I use Backpack buttons from
https://community.7daystodie.com/topic/19558-khaines-a19-modlets-bigger-backpacks-backpack-buttons-hp-bars-etc/ I do not like using teh backpack expansion - I feel it is cheating, but the sorting is a timesaver.
I like the hp bars, the bigger backpack and the sorting. The current backpack is honestly too small for my liking. The 96 slot is too big, so I take the 60 slot.
Some tips for a new player: You can boil water at any campfire, without a cooking pot, can use empty cans or glass jars, the cooking pot will make he water in a jar faster to craft.
Know your food sources! I cannot stress this enough: there is animals, looting, vending machines, traders USE THEM. You can even eat animal fat if your desperate for food.
Don't abuse placed junk turrets, you'll start to depend on them and never get better as a player if you do.
For first horde base I suggest like who I quoted to take over a poi that has at least stone walls, a good one is church_sm_02 the brown church with no fence, you can actually make a base up by the beams and its pretty stable, plus zombies cannot hit it not even exploding demolishers from the ground below (Watch out for cop puke though!) I think its also stable enough that if the support pillars get taken out it'll still stand. Never fight a horde on the same level, I mean you CAN if your good, but who realistically is going to go toe to toe with a bunch of zombies that wanna eat your face? High ground is the best.
in A19 vultrues fly at 250% speed on horde night if your on a vehicle, so don't try to run away on one to avoid them, the easy way to do it? Megacrush, or steroids both give a run speed boost, you can outrun it on foot without those if your not encumbered by heavy armor or inventory, but taking them makes it easier.
Headshots are the way to go, but that should be obvious with this being a zombie game. However you can kill things with body shots it just takes 2-3x the ammo usually.
A good way to handle a group of zombies is explosives: Pipe bombs, grenades or better contact grenades, or the rocket launcher ammo that has very low block damage, forgot the name of it. Make a kill box, let the zombies come in then drop a few pipe bombs down there, should handle the first few hordes easly enough and you may loot enough of the explosives to do it.