The making of Fallout 76 - Documentary
As of right now, the max party size you can have is 4 and one world instance will have a max of 24-32 players (they will tweak this depending on how the beta goes).
As of right now, all players will be constantly be marked in real time on your map (can be tweaked depending on how beta feedback goes).
For the beginning there isn't too much stopping PvP, but they're going to actively look into how people play and balance out the PvP and possible griefing. Quote from the video regarding when players collide and griefing: ''Let 'em collide. Where there's extra bad griefing ... we have a number of levers. But that to me is where a lot of the drama is. ... It'll be messy for a but we can solve it.'' So in the beginning phase it can be quite messy when it comes to griefing and such, but there is a good chance that they will get a good feel for how things could be balanced after the beta comes out.
When you build a base and you log off, your base will be packed up and taken out of the game world. It will then be redeployed when you log in again. If you log in and there is already a base in that world instance where you had your base, your base will stay packed up and you can deploy it somewhere else.
Micro-transactions are going to be a thing, but ONLY for cosmetics and ALL cosmetics that can be bought can also be earned by playing the game normally.
The game is going to be supported for years to come and ALL DLC IS GOING TO BE FREE.
As of right now, dying has no impact on your character and progression (can be changed and tweaked after beta and launch).
NPC Faction; The Scorched. They are a group of ghouls that is able to use guns. My guess is that they are going to be one of the main antagonists in the game story line.
A lot of Vest Virginia folk lore is being used to create the different type of monsters and mutated hostile NPCs.
Level cap seems to be at level 50.
There are certain roles/traits/skills/perks that you can pick and choose. You can't have EVERYTHING which means that you need to change up your play-style depending on what you do. You are able to reset your skills and such to select other things. If you are a party of 4 then you can have some individuals specializing in different things. Example of picking a perk in the intelligence skill: https://i.imgur.com/28raDhy.jpg
Weapons conditions have returned, so you need to repair your weapons and possibly armour.
Weapons also have levels, my guess would be kinda how some MMOs have it where you do have a little grind to get higher level versions of your weapon. It's not yet fully known how it will work out.
Crafting has been expanded even further from what we've had in previous games. Fallout 3/New Vegas/Fallout 4. You can craft bullets which has always been modded into the previous Fallout games and expanded even further.
You can take over 'public workshops' where you can set up trading and these hubs can give you access to more rare crafting materials so you're able to make even better things.
There has been some talk about you being able to set up a robot vendor to sell stuff, but it has not been confirmed to be in yet.
When a place gets nuked by one of the missiles sites, that area will become more radiated and higher level enemies will spawn there. What type of enemy that spawns there are all dependent on the area that gets nuked. These areas will spawn better gear and crafting materials. These effects will slowly degrade until that area becomes normal again.
It's easy to join in a game sessions with a friend, simply press join game and you will be put into a loading screen and you will be in the same game instance as him/her.
There are no 'game servers' or regions to choose from, you just get put into a game session if you're playing by yourself or the same game sessions with your friends. We'll have to wait and see how the whole private lobbies thing will work out.
Animation system has been greatly expanded.
Clothing/armour system and customization has been expanded.
A type of Team Deathmatch mode has been confirmed.
VOIP and TEXT is confirmed to be in the game. It now just depends on if it only work within your party (like a party chat), the game world (global chat) or your individual character (like we have it in DayZ/local chat).
One thing to keep in mind, Bethesda have been wanting to make a multiplayer/co-op style Fallout for a long time but have never gotten the chance to do so. When Zenimax (their parent company) acquired BattleCry studios they got put to the challenge to change up the engine for it to work with multiplayer. They first wanted it to make it work with Fallout 4, but that task would be impossible as they would need to rewrite A LOT of the engine and how it works due to how the Fallout 4 engine operates (only things around the 1 player is loaded and working, everything else on the map would crash your game as it wouldn't ''be'' there. Also how quest works and quest progressions since they were tied down to the quest itself and not the character.
For the people that were expecting ''Fallout 5'' are going to be disappointed since it is not going to be a fully such game and never was intended to be so. It's still going to be Fallout, but the 'feel' might be a bit different. This is the first time Bethesda Game Studio have ever made a multiplayer game and this game is going to be a whole new learning process for many of the developers for how they do things in the beginning of this game, later on and in future games.
(these two last paragraphs are me paraphrasing some of the things that was said and mentioned in the documentary)
Feel free to mention anything I missed, I did all of this at 6 am without any sleep.
Personally, I'm excited to see what becomes of the game. I've always wanted a type of multiplayer/co-op Fallout/Elder Scrolls game, so it's going to be fun how it all works out.
OP has been updated with the new pointers and this video.