You must be playing a different game to me, because...
They do.
Play with heroic modifiers and his happens dangerously often.
Halo did this better as the grunts vocalised and made it more apparent, but it does happen in Destiny.
Many times I've been holding grunts at bay only for a Captain to run into the fray and the grunts start moving forward more aggresively.
Again, happens much more on harder difficulties.
Not with the same personality, no (which is a real shame). But they do change behaviour and retreat or YOLO.
They do this very often. I notice it even on normal.
Yes they do. As above.
Are you playing exclusively on normal? Even so, I notice these behaviors on normal so I'm not reall sure what to say.
Man we tackled this before. Please read from about 8 pages ago. There are videos posted and explanations that the AI only become more aggressive based on if their LV is simply higher than you. They never become more advanced than what it is when you play from the beginning straight on Hard mode, where they are 2 LVs above.
They only move forward if they are 2 LVs above, or retreat often if they are 2 LVs below. Whether they are LV4 enemies or LV22 they react the same way.
Suggesting that he has never played the most advanced AI is dumb for many reasons, especially since you consider that a LV18 and a LV22 can both play in the same game against a LV20... The AI doesn't suddenly change, it just changes when aggro. All bugs and lack of strategy is apparent in the beginning and endgame.
Just to clarify, they will NEVER "Yolo" due to low health, this is a random attack pattern. If they are thrall, they only do it, if they are Warlock, they never do it. If they are Captain, they only do it when they are scripted to like on the tower area where you fight the scarab boss. Dregs and Stealth guys will do it when you are outnumbers, but never when not. Destiny AI is super predictable and the difficulty ONLY comes from LV differences, never smart AI. Play Halo 1 on Legendary and tell me that it's no more challenging, despite enemy ttk and player ttk being roughly the same as equal levels in Destiny...
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Dear whomever wants to suggest I dunno what I'm talking about. I have an exotic, I'm an expert now.
Seriously I am playing Destiny more than I have played Halo 4 in the year it came out now. I am playing it more because there is loot to get etc. That doesn't suggest I don't dislike the game, or that I outright hate the game from commenting... AI is no where near Halo 1's level, let alone Halo 4. Gunplay is stripped Halo, and the RPG elements are confusingly rubbish.
As a discussion thread, this AI thing about Destiny, saying they get "more aggressive" is hilariously wrong. From the beta I knew what Destiny was doing. There is a skull in Halo that does the same thing, except in Destiny being higher level will over right the "Heroic" skull. You can never have challenging AI if they are the same level.