I haven't seen any evidence of the AI being poor, when I played it regularly tried to flank and outmaneuver me just like older Halos. There were occasionally some quirks but they happened in the older Halos too.
It was awful. Most people seem to think it is as well. Elites would sometimes outright stand in the open not doing a thing.
And even if for the most part it wasn't that outright bad, the AI didn't do things like it did in other halos, like Elites literally using grunts as meat shields, for example.
It's pure and simple bad AI. Halo has always had REALLY GOOD AI.
This thing is they couldn't bring out a game where the graphics weren't improved, especially when you had games like Battlefield 3 looking absolutely gorgeous coming out a year before. The fact that they had areas as large as they were with the graphics they had is incredibly impressive.
There's nothing that says they couldn't have improved it while preserving those huge environments and overall making it look prettier. Reach, for example, took Halo 3's insane draw distance of like 13 miles or whatever, and doubled it. Remember the last mission in Reach? Look to your left once you get to the top of the first cliff. There's a gigantic valley to the left. At the far end are mountains. Those are actually being drawn. Not background. Actually being rendered by the engine. That is insane. There are obviously many things that could have been improved and made more efficient, and likely as not, Halo 4 did that.
The problem is not that it improved the graphics, it's that it when too far.
Gameplay > graphics is something you hear all the time, but 343 knows that gamers and the press are impressed with graphics when attempting to hype a game. This game was very much focused on fluff and rather than substance. Good looking game instead of things gamers, at the end of it all, want, such as an open beta, good AI, good multiplayer, etc.
The lack of open beta is a fantastic example. If people had played the beta, there would have been a huge backlash, and it likely would have been saved. Instead, we just got screenshots and vidoc after vidoc. Visuals. That's all we got. Visuals (and some sound). Fluff, in other words. Surface-level stuff. It's clear that 343 was more interested in the way the game appeared to the public to really up those initial sales than the actual substance of the game. Don't get me wrong, the game isn't half-assed. But it's about priorities. And it looks like the whole thing worked, too. Initial sales for Halo 4 were insane.
If you can provide any form of evidence that CPU cycles were being taken up with graphics processing so much so that it couldn't compute good AI other than that you think the AI is bad then I will be impressed. Currently though that's a load of crap you're pulling out of thin air.
You only have a limited amount of resources to do things.
Also, recall that sound takes inordinate amounts of CPU power. Up to a third. You will recall that Halo 4 is very sound heavy. Lots of high quality sounds being processed, up to the point that they had to set the quality/volume of the music down to where you could practically not hear it at all (the fact that there was no music volume slider, a standard option in video games for years now, provides more support for this).
With a ton of CPU power being dedicated to sound, you've got even less for complex things like AI.
I agree that aimbots are artificial difficulty, however I found that the AI did more than just shoot well. As I stated above.
I never said that they just shoot. I was giving an example.