Edit1: had 2x 3). Fixed.
Edit2: added Major-9and Minor-1,2,3
Edit3: added Major-10, Minor-4
Edit4: added Major-11
Edit5: added Minor-5
Edit6: added Major-12,13,14,15,16,17,18 & Minor-6,7,8,9
Edit7: added Major-19 & Minor 10
Some things Fallout 4 needs. Major category is for impactful improvements that affect the game in a major way or big QOL changes. Minor is more of a feature want or cosmetic things that don't impact gameplay in too big a way mechanically. Category assignement is subjective obviously
Major
1) UI for management of settlers and their assignements
This is something that is really missing. Some sort of table with settlers and their works assigned would be nice. Right now it's hard to do and tell what they do and sometimes gotta go look for them in odd places. This would make things a lot more pleasant especially with 10 or so settlements to manage
2) Companion markers on the map
Each companion should have its own icon with name visible on the map similar to Power Armors so we can more easily find them (especially ones assigned to supply lines).
3) Supply lines sharing other items between settlements besides raw materials
That's the entire purpose of having a supply lines. Trash is not shared so raw materials from it aren't accounted for unless you manually salvage them which is tedious. Armors and Weapons as well as things settlements produce like water, caps etc should be shared between settlements with supply lines. This is QOL change.
4) More settlements structures in Build Mode
I feel we need a lot more different structures to be able to build more things. Options for having wall with place for doors for example are severely limited
5) Toggle Clipping ON/OFF & Toggle Snapping ON/OFF in Build Mode
We need to be able to toggle these to have more control over our settlements and how they look and stick together. I know this is an easy thing to implement. Map it so some button combination or w/e. There are commands for it on PC (most likely) that aren't there for PS4/X1.
Along with this we need to be able to turn snapping to other objects off. This is really irksome when you want to place something close by but it snaps whether you want it or not. These 2 are imo crucial for enhancing this feature of the game.
6) AP cost for weapons & mods
We should have another statistic added which is AP cost for using a weapon in V.A.T.S. Besides having this stat on a weapon we should also have it visible when modifying our weapons so we can see that mod X adds 2 AP cost or mod z substracts 5 AP from use.
7) Ability to use grenades of all sorts in V.A.T.S.
I don't know if I simply missed something obvious here but with equipped grenades I wasn't able to use them in V.A.T.S. at all.
8) Smarter companions
By this I mean that companions should be able to use stimpaks themselves if I gave it to them. I gave Strong 5 stimpaks and let him be but he never ever used them. I think this is a bit silly and unintuitive because it's opposite of what was in FNV/F3. Along with this goes better pathing for them. They could really use it.
There should be some bahavioral menu to set some behaviours for our companions. Like what sort of distance should they keep from us, should they be agressive or defensive or smart. That sort of stuff.
9) Button remapping for PC/XO/PS4
Players should be able to rebind their keys however they want. For example seperate Grenade/Melee button for better Melee gameplay.
10) Equipment Manager
Ability to make 'sets' of items and organize them in group. For example Charisma Set consisting of glasses, hat and suit that we can equip with a single press. Or Armor Set where with a single click we can wear all of our armor parts like chest armor, helmet, glasses and so on.
It could be easily done by allowing us to organize things in set and allowing us to select them from seperate UI category. So Armors would have all parts but "Outfits" would have a single group name (example) "Charisma" and it would auto select all parts. Avoids screen clutter.
11) Short crafting tutorial and build mode tutorial
Will make players more aware of how it works and gives a starting point for them. It is also good to explain to them how Supply Lines work and what are requirements for it.
12) Settlement gates should be lockable
What's the purpose of having a gate when it's always opened and enemies can come through it without problems?
13) Better Settler AI (especially when under attack)
If I create walls and gates and guard posts to protect a settlement and its settlers then why in the world when under attack settlers all run out of a settlement, outside its walls to engage enemies and die stupidly? This seriously needs a fix. I have a nice walled/gated settlement with guard outposts and turrets but still settlers just run out in [censored] rage far away from settlement into the wasteland and die stupid death. Very, very annoying.
14) hardcoe Mode
Seperate from Difficulty so we can avoid DMG sponges. A mode that would require player to eat/sleep/drink/health regen from stims and other sources slowed a lot. Negative conditions after not eating/drinking/sleeping growing in strength. Ammo has weight. Basically everything besides quest items should have weight and an increased weight too.
15) Faction based buildings
So we can have that BOS bunker/base of ours or institute science site or railroad or minutemen. I won't lie, I hoped I would be able to build more High-Tech buildings with high Science! perk.
16) Being able to build underground
Preferable with "loading screen" so the object limit is seperate from settlement. Think of a bunker/hidden underground room.
17) More monster types
So far it's some animals, muties a lot of ghouls, humans. Need more types and subsets of monsters to make the place even more alive.
18) Added option for "view latest".
Similar to viewing by weight, value and so on.
19) Full dialog preview when highlighting particular dialog option.
For example we have 'sarcasm', 'yes', 'no', 'reward'. When we highlight (without choosing) for example 'sarcasm' it changes to a full line and then we see: 'Well, aren't you a Cpt. Obvious', 'yes', 'no', 'reward'. Then if we highlight 'reward' we get, for example, 'you will have to make up for my time lost and potential health risks', 'sarcasm', 'yes', 'no'. Something like this. We could eventually have it displayed at the bottomg of the scree or top if there are cases of a lot of text.
Minor
1) Visible Holstered weapons
At least as much as possible. Rifles, pistols, melee weapons shouldn't just vanish in thin air. May be a little more problematic with Heavy Weapons like minigun.
2) More categories in UI for item classes
It would be good if we had seperate category for 'keys', 'food', 'meds' for example or options to set it up ourselves or have additional sorting options including item type so it's lined up more nicely
3) New craftable items
Like ammunition
4) Seperate sliders for Pip-Boy Flashlight.
So we can have different HUD/Pipboy color and different Flashlight. Personally I would love to still have standard green pipboy and hud but green flashlight is too tiring for eyes and I had to change it to more warm-white color.
5) Toggle Head apparel ON/OFF
Because we may want something for stats but not for looks and taking it off is irksome. Some of us spent a lot of time crafting perfect character
6) Settlers from different factions
If we are part of BOS let us have BOS "settlers" in our base. That kind of thing. Same with other factions.
7) Lock companion gear
So "take all" option doesn't take locked gear like their armor (especially if it's layered), weapons or ammo.
8) Zoom levels for scopes
Speaks for itself pretty much. So we can zoom in/out while looking through a scope. Can be easily done with some keymapping for scope mode.
9) "Scrap all Junk" and "scrap" option at a workshop.
So we don't have to carry it manually between settlements because supply lines don't account this for. Would allow us to quickly scrap all junk in the inventory and in workshop (seperate action for both for more control). Added option for scrapping them one by one without having to drop them to the ground.
10) Slaver faction
There has always been one and possibility to become one in every Fallout game. We have characters in F4 that belonged to slavers at some point. I think it would be a good Fallout thing to add.