Currently Online 
curl-6 on 13 July 2016
I have to concur with what many have said here; it's a bit disappointing that AI doesn't seem to have improved all that much over the last two generations. Halo: Combat Evolved, a 6th gen launch title from 15 years ago, still has better AI than a lot of modern games.
Having said that, I'll also concur with Veknoid above me, and say that Halo Reach gets my pick as well. The way enemies push forward when you're damaged or reloading, flee when outgunned, dodge and flank you, and generally seem to have actual situational awareness, makes them feel a lot more organic and intelligent than the average "bob up and down behind cover" cannon fodder in most shooters.
