3. Bigger Towns
Simply put, New Vegas felt tiny. Everything in both the new Fallout games felt tiny. There were towns of 8 people, and bustling cities of 20. Since Elder Scrolls 3, Bethesda has spent tons of money and time on perfecting the look and feel of towns, and the end result has been some amazing cities, especially those in Morrowind. However, their cities have always felt a bit lack luster in terms of population. Grant it, Fallout is in the wasteland, and there aren't supposed to be thriving metropolises of millions of folks living in skyscrapers and dining in wine and cheese. Save that crap for George A. Romero movies. But, when the only single sizable settlement is New Vegas, it makes the entire game feel too sparse. In Fallout 1 it was OK to be sparse, because humans were just starting to crawl back out of their caves and vault to put things back together. New Vegas, on the other hand is set in a time where they have hydro-electric power, paper money, and war. Surely there must be more than one city with a large population. There are sure to be smaller settlements across the wasteland, which consist of a family or two trying to make it on their own. And, there are certain to be issues the prevent programmers from making cities of thousands. But, at least a few cities with a population upwards of 50 would make Fallout 4 worth playing for days. The amount of internal exploration that could be done in such an urban microcosm would be enthralling. The list of side quests that could be programmed into a town of that size is too big to even address, but one thing is for sure, doing the missions in a place that felt that alive and full of diversity would give players real reason to keep playing after the main quest line finished.