ilr, on 19 October 2012 - 10:35 PM, said:
Glass cannons are very viable, or haven't you been reading the threads about them? ...You criticize me for not reading but it's obvious that you're the one in the minority here. The only issue with said glass cannons is when the AI is on a cycle and blips out, then switches targets just long enough to 1-shot a complacent glass cannon. ...or in the case of mobs like Subject Alpha who have huge misleading AoE's where avoiding them comes down to pure luck a fraction of the time. (and even a fraction is too slim a margin for a 2-minute Waypoint slog).
You also cite "Tests" just like the first poster I responded to but you provide no links to them or even a shred of anecdotal evidence like I have. Atleast with what I provided, people can make up their own minds on whether observations met theory. In your case, you're just attacking a little too aggressively, with no counter substance.
PS: The other dead giveaway in all of this, is that this is Anet we're talking about. They've never made their aggro system complex, even when individual mobs are scripted to pick targets (SS-Surveyors & Rragarr for example). And it was obvious with all the issues we saw in Beta that they hadn't made a lot of great strides when it came to A.I.
Regarding the AI, I feel it's the same they used for GW1 basically. Mobs goes through a series of checks to pick targets. Mostly, who hits them first at first, then, distance, armor rating : toughness (mitigation) / health points, DPS dosen't really matter, obviously, if you got low armor rating and low toughness you'll do more DPS or have more MF. The reason why a clothie would always draw aggro is if he gets close to the mob, inevitably, the mob will switch to the low damage mitigation target. If someone else has a higher armor rating, but low HP, the mob will switch to that target. This is highly dynamic. If you got, for example, a guardian tanking, with high HP after a spike heal, and you stand next to him on a clothie with full HP as well, chances are the mob will switch to you, because of your low 'damage mitigation' factor. Pulling and the distance between you and the mob are the major checks, then if the mob has multiple optional targets he'll chose the easiest to kill / finish off. Toughness and armor rating are probably combined for a 'damage mitigation' check.
So your stats should be affecting your playstyle. Glass canon ? Don't pull and stay ranged. Tanky ? Pull and get closer to the mobs. You're a glass canon melee (thief, DPS warrior or DPS Guardian) ? It's harder to play, don't pull, burst and GTFO when mobs attack you.
I remember playing GW1 and noticing mob react really weird compared to other MMOs, then people figured out it was possible to control aggro. it was certainly one of the major differences with other MMOs, no taunt mechanic, mobs picking the easiest reachable target to kill, a very clever AI IMO. There's nothing random.
Why are mobs attacking pets and phantasm / illusions ? Low distance, low HP, low damage mitigation. Why are mobs always ignore the guardian and chase the thief ? Same reasons. In the end, root / stun him when the 'tank' loses aggro and have him right on top of the boss and you won't ever have trouble, unless your melee glass canons are stupid enough to never pull off. If you're at range, you'll never have a boss starting to chase you if you got friendlies standing between you and him, no matter how much DPS you do.
If the mobs / boss is ranged, he'll chose the easiest target he can hit within his range, so sometimes it's really hard to control. That's where you need to cycle your reflect spells, and use LoS or get out of range if you're targeted. Then when your 'tank' takes damage, and his HP goes lower than everybody else, he'll never lose aggro. So, out of LoS or range, heal to full and come back to the fight. If your 'tank' also heals to full, chances are a clothie will next be targeted.
Feel free to correct me, it's all based on my personal experience and observation, and playing both guardian and mesmer to 80, and GW1 for years.
Edited by Fatnipps, 31 October 2012 - 02:23 PM.