Howdee pardners. 
tldr Chapter 3 good, bugs bad, me angry
I was tremendously excited that Chapter 3 released all of a sudden. Now after a few quests (I only just recruited Salvador), I'm torn between this excitement and a sh1t ton of frustration (don't get me wrong, this still all looks super cool and I'm an immense fan of y'all's work (is this even a word? whatever)), making me spend too many stressful hours trying over and over to get through the questline, which I love, but bugs and CTDs are making me crazy.
After I had to end Chapter 2 with the skip quest cheat tool (idk why, nothing happened when meeting the team in the comm room), I had to go back and forth with saves to make things work correctly in Chapter 3, then I had to use console commands an awful lot.
First, I'm not sure if that's intended but Flickering Lights took hours to trigger after I completed Chapter 2, and when Aiden eventually called through HQ radio, he made me exit workshop mode as I was building a settlement, then after the call ended he kept calling me again every other minute with the exact same dialogue like a spam bot or a stubborn salesman.
Arriving in HQ, going to check the new area, there was a dialogue where my female Sole Survivor had some line using the male Sole Survivor voice. I haven't kept track of that particular bit (sorry) because I don't always pay attention when it happens once in a while, and I'm pretty sure that happens in the base game too sometimes.
More annoyingly, all the holotapes I found down there had no voice, no sound came out with the subtitles - which disappeared a bit fast, it was hard to read some of them.
On the matter of voice, I got stuck and had to reload a save when speaking to Aiden after he got attacked. I tried to talk to him after his dialogue ended, and it just forced me into a blank dialogue mode I couldn't escape.
Down the line, talking through the radio with the trapped engineer (btw that gameplay was quite impressive) was rather hard since we have to move to get to the buttons then back to the radio on the desk - I'm not talking about the difficulty of the puzzle itself. Our character doesn't react to the dialogue automatically like we do in other scenes in some quests, I had to move my mouse precisely on the spot where I could enter dialogue mode with the radio on the desk.
I also saw the spooky albino ghoul teleporting I think when I finally faced it, it seemed to have instantly moved from one end of the room to another. It was weird.
Next quest, Resurgence, this was intense in a lot of different ways.
On my save I had already finished Fallout 4's main quest, and everything went fine (except maybe a voice line that's gender-swapped again in the meeting room) up to the point where we have to build an outpost. Then came trouble.
After my team built an outpost out of Warwick Homestead and I enjoyed the tour, I got stuck with Lupe not going to the comm plot. I spent too much time trying a lot of different ways to get her to that plot, moving the plot, creating other paths, teleporting her with console commands, fast travelling away and back... Only to find a fix on another thread, because Lupe had to go specifically to that plot but LVL1 and it spawned upgraded to LVL3. A bit weird, but at least I discovered Aiden kept following me, which was funny, I could have kept him as a "temporary" companion.
Then bigger trouble came with the Gunners.
At some point I had the game lag, freeze then crash when a squad attacked, but all the times I had this kind of thing happening near the outpost I think that's because of the load from the settlement as this happens a lot, at least lags, in any settlement with a lot of stuff built. I loaded a save just before, when interacting with the radio, then got another CTD before I could go away from the settlement and to the spot where the attackers spawned lol.
After killing that squad I approached their landed vertibird and noticed I could hit "board", and got stuck there, no way to come out of it. Again I tried fast travelling away and back but I couldn't fast travel, so I used console commands to go away and back; first it teleported me with the vertibird somehow, then it worked; but when I had to board the vertibird the interaction was gone with no way to make it come back even when I tried disabling and re-enabling the vertibird or the recycleactor command off the top of my head.
So, loading an earlier save, crashing again, loading that save without too much load on my computer so I don't crash, going back to that point without messing around, we embarked for an epic journey!.. If only our vertibird's supposed missiles worked, if only its movements were a bit better (I like using Flyable Personal Vertibird but I guess it'd be too hard to do something similar here or to make it possible for FPV users to use it instead?), if only the darn gunner vertibird wasn't immortal... Spending something like half an hour trying to shoot it down made the scene less and less epic. 
Now I'm guessing maybe that's on me? I'm also using Better Vertibird, essentially so I can use them with FPV, but it might have rendered that gunner vertibird also very overpowered. Encountering that when I'm walking, that's an interesting challenge! But during that air battle, not the slightest. I spent maybe half an hour trying to keep my vertibird stable (making my head spin) and trying to land any shot on that gunner vertibird, it seemed endless; at some point I saw flames coming out of an engine and thought that was it, it would finally crash, but nope, and it even regenerated?!? I checked using the console, and yes it did! So I thought, whatever, let's use the console to end its/my suffering (I could also uninstall my vertibird mods, but I thought this would break my save to uninstall those right now), so I went and killed it straight ahead and: CTD. I tried again, loading a save when I'm airborne already, and: CTD when the screen becomes white. I tried again but indirectly, using console commands to make it weaker then shooting it down, but it didn't work and even with less health points it was just next to impossible to shoot it down. I tried teleporting to GNN before boarding the vertibird; wrong course of action, don't do that lol (you'd just see gunners on land). I had no other idea than to try again to kill that flying boss, and idk how (because I mostly did the same thing over and over, and it kept crashing until it didn't) but I eventually killed it, using a sh1t ton of console commands and, I guess, a lot of luck to land enough shots to kill it while Lupe kept telling me her 2 or 3 voicelines about how she was trying to pilot (sorry Lupe, I got angry and might have said "shut up" more than once). Then we almost died, but that's how the quest is supposed to go. The long wait loading the next scene made me terribly scared that my game was gonna crash again but fortunately it went well.
I have spent too many hours on this, it was so freaking frustrating. And yet, y'all did a magnificent work at giving me wild emotions, and almost goosebumps for Jake (there's nothing stopping me from romancing him, not even myself). It kinda made it worthwhile. But this is all so very frustrating. But it's so cool. But frustrating. But...
Oh, and here come more missing voices. About all of the staff down there after that vertibird scene are mute, except for exactly one scientist who has 2 lines I think, all the others move and have subtitles but no voice. Also, they're walking through some items. And some items overlap here and there, but it seems to happen a lot in HQ - that's maybe a problem in itself, but not really new here. Also people who are supposed to be in bed recovering sometimes are not in the right pose and sometimes get up and back in bed; people who are supposed to be standing sometimes go to bed then back up, and strangely I saw a NPC "going to bed" on nothing but air.
Anyway, after that I didn't see any other bug I think. I didn't even really complete the quest after Resurgence yet, because it was very late (because I'm passionate enough to keep playing through those bugs and everythingand maybe I have attention problems), and I wanted to stop playing not because of a CTD this time but because I wanted to go to bed with less frustration lol (yet I spent about an hour and a half writing this).
"Me and This Army" was awesome, everything was perfect, there, that's something I can think about when I go to bed. Incredible mod. SS2 good, bugs bad.
tldr Chapter 3 good, bugs bad, me angry
I was tremendously excited that Chapter 3 released all of a sudden. Now after a few quests (I only just recruited Salvador), I'm torn between this excitement and a sh1t ton of frustration (don't get me wrong, this still all looks super cool and I'm an immense fan of y'all's work (is this even a word? whatever)), making me spend too many stressful hours trying over and over to get through the questline, which I love, but bugs and CTDs are making me crazy.
After I had to end Chapter 2 with the skip quest cheat tool (idk why, nothing happened when meeting the team in the comm room), I had to go back and forth with saves to make things work correctly in Chapter 3, then I had to use console commands an awful lot.
First, I'm not sure if that's intended but Flickering Lights took hours to trigger after I completed Chapter 2, and when Aiden eventually called through HQ radio, he made me exit workshop mode as I was building a settlement, then after the call ended he kept calling me again every other minute with the exact same dialogue like a spam bot or a stubborn salesman.
Arriving in HQ, going to check the new area, there was a dialogue where my female Sole Survivor had some line using the male Sole Survivor voice. I haven't kept track of that particular bit (sorry) because I don't always pay attention when it happens once in a while, and I'm pretty sure that happens in the base game too sometimes.
More annoyingly, all the holotapes I found down there had no voice, no sound came out with the subtitles - which disappeared a bit fast, it was hard to read some of them.
On the matter of voice, I got stuck and had to reload a save when speaking to Aiden after he got attacked. I tried to talk to him after his dialogue ended, and it just forced me into a blank dialogue mode I couldn't escape.
Down the line, talking through the radio with the trapped engineer (btw that gameplay was quite impressive) was rather hard since we have to move to get to the buttons then back to the radio on the desk - I'm not talking about the difficulty of the puzzle itself. Our character doesn't react to the dialogue automatically like we do in other scenes in some quests, I had to move my mouse precisely on the spot where I could enter dialogue mode with the radio on the desk.
I also saw the spooky albino ghoul teleporting I think when I finally faced it, it seemed to have instantly moved from one end of the room to another. It was weird.
Next quest, Resurgence, this was intense in a lot of different ways.
On my save I had already finished Fallout 4's main quest, and everything went fine (except maybe a voice line that's gender-swapped again in the meeting room) up to the point where we have to build an outpost. Then came trouble.
After my team built an outpost out of Warwick Homestead and I enjoyed the tour, I got stuck with Lupe not going to the comm plot. I spent too much time trying a lot of different ways to get her to that plot, moving the plot, creating other paths, teleporting her with console commands, fast travelling away and back... Only to find a fix on another thread, because Lupe had to go specifically to that plot but LVL1 and it spawned upgraded to LVL3. A bit weird, but at least I discovered Aiden kept following me, which was funny, I could have kept him as a "temporary" companion.
Then bigger trouble came with the Gunners.
At some point I had the game lag, freeze then crash when a squad attacked, but all the times I had this kind of thing happening near the outpost I think that's because of the load from the settlement as this happens a lot, at least lags, in any settlement with a lot of stuff built. I loaded a save just before, when interacting with the radio, then got another CTD before I could go away from the settlement and to the spot where the attackers spawned lol.
After killing that squad I approached their landed vertibird and noticed I could hit "board", and got stuck there, no way to come out of it. Again I tried fast travelling away and back but I couldn't fast travel, so I used console commands to go away and back; first it teleported me with the vertibird somehow, then it worked; but when I had to board the vertibird the interaction was gone with no way to make it come back even when I tried disabling and re-enabling the vertibird or the recycleactor command off the top of my head.
So, loading an earlier save
Now I'm guessing maybe that's on me? I'm also using Better Vertibird, essentially so I can use them with FPV, but it might have rendered that gunner vertibird also very overpowered. Encountering that when I'm walking, that's an interesting challenge! But during that air battle, not the slightest. I spent maybe half an hour trying to keep my vertibird stable (making my head spin) and trying to land any shot on that gunner vertibird, it seemed endless; at some point I saw flames coming out of an engine and thought that was it, it would finally crash, but nope, and it even regenerated?!? I checked using the console, and yes it did! So I thought, whatever, let's use the console to end its/my suffering (I could also uninstall my vertibird mods, but I thought this would break my save to uninstall those right now), so I went and killed it straight ahead and: CTD. I tried again, loading a save when I'm airborne already, and: CTD when the screen becomes white. I tried again but indirectly, using console commands to make it weaker then shooting it down, but it didn't work and even with less health points it was just next to impossible to shoot it down. I tried teleporting to GNN before boarding the vertibird; wrong course of action, don't do that lol (you'd just see gunners on land). I had no other idea than to try again to kill that flying boss, and idk how (because I mostly did the same thing over and over, and it kept crashing until it didn't) but I eventually killed it, using a sh1t ton of console commands and, I guess, a lot of luck to land enough shots to kill it while Lupe kept telling me her 2 or 3 voicelines about how she was trying to pilot (sorry Lupe, I got angry and might have said "shut up" more than once). Then we almost died, but that's how the quest is supposed to go. The long wait loading the next scene made me terribly scared that my game was gonna crash again but fortunately it went well.
I have spent too many hours on this, it was so freaking frustrating. And yet, y'all did a magnificent work at giving me wild emotions, and almost goosebumps for Jake (there's nothing stopping me from romancing him, not even myself). It kinda made it worthwhile. But this is all so very frustrating. But it's so cool. But frustrating. But...
Oh, and here come more missing voices. About all of the staff down there after that vertibird scene are mute, except for exactly one scientist who has 2 lines I think, all the others move and have subtitles but no voice. Also, they're walking through some items. And some items overlap here and there, but it seems to happen a lot in HQ - that's maybe a problem in itself, but not really new here. Also people who are supposed to be in bed recovering sometimes are not in the right pose and sometimes get up and back in bed; people who are supposed to be standing sometimes go to bed then back up, and strangely I saw a NPC "going to bed" on nothing but air.
Anyway, after that I didn't see any other bug I think. I didn't even really complete the quest after Resurgence yet, because it was very late (because I'm passionate enough to keep playing through those bugs and everything
"Me and This Army" was awesome, everything was perfect, there, that's something I can think about when I go to bed. Incredible mod. SS2 good, bugs bad.
) it triggers a mix of dialogue/scenes we're supposed to take some time to go through, and I got stuck near the cryopods it seems, some dialogue triggered all at once and the quest wouldn't move forwards (guess what I had to reload a save 
Though I had lost several experienced soldiers, whatever.
) but it was never hostile. I had to guess it (and confirmed it by reading the wiki) and hack it to make it go boom then loot its key.
Chapters 1-2 have been mostly fine so far, despite my expectations.