The problem is obvious, no New Vegas enemies are really very ominous or fun to fight like the enclave were.
The enclave were bad ass, everything about em, their power armor, they way they would show up, getting dropped off by vertibirds, they patrolled the map area had good firepower and sentry bots.
So if you just say, "oh we need new enemies for the sake of new enemies" that doesn't make the game better.
Taking away the enclave takes away the most mysterious and ominous faction of the franchise, plain and simple.
Caesars Legion is a joke and so is the NCR, neither of them have the mystique of the enclave.
If there was a faction similar to the enclave that would be cool, but there's not, Caesars Legion run around with spears and machetes and they aren't very ominous or mysterious and they aren't high tech either.
They're the lamest enemy in fallout there is besides bloatflies.
So replacing the enclave with what amounts to be cavemen with spears DOESN'T work for me. Sorry.
And most people already notice a huge lack of good human enemies to fight and thats because obsidian took out the best faction in the franchise, so you can filabuster all you want, but the bottom line is combat in new vegas isn't that great.
My god man, hit the enter button a couple of times would ya? Not reading the next post if it's a clustered text.
Anyway, we go by lore mkay, we go by canonized events.
And Enclave?
They first died off in Oil Rig but somehow magically managed to produce even greater number and equipment than they had in FO2 and then died off again in FO3 and Broken Steel.
The Enclave can't just "appear" again.
It doesn't make sense.
If you feel that the new factions svck and only like fighting space marines with ultra secret evil master mind plans then so be it.
But Enclave died out... Thrice... How are they suppose to come back?
And Remnants?
We saw them in New Vegas.
They were old people who tried to hide away what presence of Enclave there was in the west coast.
Once Remnants are gone then there is no more Enclave.
It's about being realistic and following lore and logic.
And so what if one of the most mysterious factions was killed off?
They can always think up a new one.
In fact, by ridding Fallout of Enclave leaves a window open for a new faction to emerge in their place.
A new faction of mystery.
Maybe a new faction of high-tech.
Maybe a new faction of bad-assery.
If you didn't like the factions in New Vegas then there isn't much to do about it.
But the problem with the combat in New Vegas is not the absence of Enclave, it's that the game is too focused on fixed spawn locations.
The game becomes predictable after the first playthrough, and then it becomes dull.
Most enemies also use crap weapons and that's because of the absence of player level scaling. (Oblivion and FO3 were not better with it but still.)
So Enclave being gone isn't what makes combat svck in Vegas.
It's a bunch of other things.
Van Buren was never officially a game, so it doesn't really count. How could Bethesda screw it up when it wasn't really there?
Going by that, the Enclave were major factors in two of the three main Fallouts(since most people here have not called New Vegas Fallout 4).
There weren't a lot of Enclave in FO2 and most of them stayed on the Oil Rig which blew up by an atomic bomb.
So gee, I dunno, the only explanation I can find that Enclave could have emerged as strong as they did in FO3 is if they screwed each other's brains out and basically did what Legion did with the girls and turned them into baby mommas.
And the equipment?
Vertibirds?
Crawler?
Where the hell did all of this even come from?
If they always had this hidden away then why didn't they just go to Raven Rock directly instead of staying on an old Oil Rig?
I'm not as good as others are on Enclave lore but even if we dismiss Van Buren we can't dismiss the facts in FO2 and the plot hole between then and FO3.
And there are five main Fallouts actually. (I do consider Tactics and New Vegas fully canonical games, it does not need to have a number on the end to be a main game.)