The sporadic progressive extreme stuttering and lag is still present(also followed by a ~90% GPU load). Due to  extensive testing, I think the reason is the "see-through" solution for walls and obstacles. It's somewhat unstable, at least for NVIDIA cards.

Not necessarily. Specific Rebel Psyker, Chaos Warpsmith, Chaos Chosen, whether Revenant, or common unit have this distinctive Grenade attack, represented by a simultaneous launch of two projectiles, red and blue.

At higher difficulty levels this attack is more dangerous, then any other units have to offer, due to the previously described activation specifics.

On another note, wonder why it hasn't been mentioned before, but the true problem for an Unhinged Psyker build is not the "triangle" anomaly, or Daemons, but the one that explodes into six purple balls. It's spawned right on the current PC position and the one caught within the spawn zone is hit by all projectiles at once, which means an insta-kill, whatever the defences are.

I take my words about the Crusade loot back. It's worth the effort.

Ok, so, to add insult to the injury, those Grenade attacks and Warp column attacks ignore the Knockdown state. Which means, the unit will still cast them while affected by Knockdown. At least, the last Sorcerer encountered had no grenades.

Guys, someone's giving you some really incorrect feedback, for those Villains are encountered fairly often.

I'm about to have this "Impreccable Crusade" achievement. At Level 76, Difficulty 17, one life lost. Wonder what the loot is, somehow doubt it's godly. And that would kind of prove the point.

The following is a bit confusing:

At this rate the regulars can do some damage and are a threat in large enough numbers, the Champions are a credible threat.

The Sorcerers, the Rebel Psykers and some Chaos Chosen are downright deadly. You can not approach them, otherwise you get shredded. Even at maxed out reduction and resistances. And they are not glass cannons, their health pool is at 75% Elite level and their suppression pool and regeneration is better.

Such missions demand meticulous kiting at a long range and constant strafing. Which takes time. The least increase for a full Crusade mastery is +12. Yet, people score those 75 minute full Crusade runs. Something's not right here.

1. The latest example is the "Revenant Chaos Chosen". The primary problem are the double(or triple, it would seem) grenade launches that unit can perform even at point blank range. Having just recovered from a knockdown, and being fully suppressed, no less. 

At point blank one such launch is enough to kill a level 71 Crusader(hp:9359, deflect:8, reduction 38%, phys resist 54%, heat resist 55%, warp resist 50%, suppression state: protected). I strongly doubt any other character would fare better.

2. Goreforged Flamers are the prime example. I'd wager, something is wrong with the basic DOT damage application function, some test iteration remnant or something.

3. From time to time the PC receives damage, which sets the PC health to zero. It's a very rare occurence, I've encountered that twice. The first time I was calling an Artillery Strike during a random mission: once I call it - blam,  I die. The second was during a Zircon Void Crusade: I start fighting the last object of the Hunt(as a Crusader, DR 80%, Resistances 45%), blam - I die.

As of 2.5.2, the following is still encountered:

1. Specific Villain Champions, Sorcerers and Psykers encountered deal obscene amounts of damage(as in 10000 per hit), especially with their grenade attacks. Is that to be expected? These Villains are far better, then most Elites, but their loot is not.

2. Enemy Flamethrowers appear to, at least partially, bypass player character(not NPC) resistances.

3. There're rare weird one-shot-kill damage spikes done to the player character. It's as if the health reserve gets overflown to a negative value.

Also, intel missions could stack the armoured hazard, making the enemies pretty much unkillable. I had a mission with +armoured +armoured +heavily armoured enemies a long time ago, it was impossible to kill anything there. Even after the hotfix back then, you could still run into missions with 2-3 stacked armoured hazards. I reported this some time ago and I think you commented on it back then, so you should know better than this.

@MARCOPOLOCS‍ just to report the same issue that HolyKirka posted below: all passive trees have been reset with this patch.

I'vn been played nearly 400 hours in the game,

most of them was spent on my techadepts,

for only one reason!the Tech Fragements!

After endless farm days and nights,

I reached level 132 for my Combustor Lasgun,

At level 132, the number of fragments required for upgrading has reached 1.4 million,

With all my focus, I can get only 200000-250000 pieces per hour,

The level of weapons represents my every effort and every minute of time invested.

And you just deleted it, as if it's not a big deal,as if nothing ever happend,I don't even see an Apology or compensation plan.

This is a betrayal to all players who loved this game. You should be ashamed and start to solve this problem immediately, otherwise all players who pay time for this game will not agree!

I don't mean to threaten you. I'm just state a fact. From now on, every minute you don't solve this problem, you will see a flood of bad comments on steam!

Return Our Fragments!

Checked on my TA - TA players found that their construct weapons get reverted back to LV 100 - Confirmed!!!

It is very  very sad.

Skill tree also were reseted.

There are worrying things now, however : 

TA players found that their construct weapons get reverted back to LV 100, and the materials used before are not returned.

Is that a bug or intentionally made balance change? I fail to see this in the path note.

Since some players already have Lv 140+ weapons, and they have been grinding really hard (and with high proud) to get these shiny stuff, I can only imagine their frustration to see their labor vanished....

Please take a look into this ASAP. If this a balance change, I think it would be appropriate to return the materials to the players :)