I think in all the games, id like more of a horror element at times.
3. Oasis questline should've been a bigger deal. Putting Harold out of his misery seems like the best option. However, I struggle with the idea of injecting his heart to jump start plant growth. It almost seems like Harold is held in a place where he became a part of something bigger. Which is new growth in the wasteland. Should one soul have to suffer to achieve it? Idk
I think Regulators and Talon Company Marc's should've had a rivalry. I would say "like the MM and Gunners" but they messed that up too. Talon Company had a solid base in that Fort. Could've easily made that a quest.
I think Slavers were a bigger threat than they were represented. I think with the escaped slaves from Paradise Falls should've had some sort of liberation quest led by Hannibal Hamlin. You can give him the Lincoln Repeater. So, it mightve been a nice touch to help him free some slaves.
NV. I think there could've been more tribal situations happening. I liked the Great Khans. There should've been a fight between them and tribes like the Fiends.
4. A lot of missed potental for the MM v Gunners War. It was so ridiculous that you couldn't directly do a quest to wipe the Gunners out. You just can do it if you want. Then they respawn anyway. Like, there are named Gunners that just dont have anything to do with a quest.
Otherwise, just the water in general. So much space left unused. The canceled underwater vault might have helped. But, who really knows.
Then, I think the DLCs could've been better. Far Harbor and Nuka World are alright. Just didnt seem like their best work.