@MCOX I'm sorry I thought that closing another ticket. This should be still open until being fixed, of course.

@Triton101 I checked your .rtp and it seems that you have played Exile mod in past (or actually playing), but I have not found any loaded Exile mode. Why I telling it? Your .rpt contains many .cfg files related to various sounds, faces, characters that you can meet in Exile or another Survival mods. (i.e. zombies) or KOTH These files was not found.
Do you playing Exile or some other zombie survival mod?
I recommend you to delete all files in workshop folder located in your Arma 3 root. (C:\Program Files (x86)\Steam\steamapps\common\Arma 3\!Workshop)
To see !Workshop folder in your root, you must have hidden files enabled or use Total Commander.
You can re-download all mods what you will need but rather try to re-install Arma 3 and download mods again.

I understand now. I´ll try to reproduce this behavior and let you know.

@makkyzr I´d help you to change your profile name.

Launcher>Options>Prepare Troubleshooting report

Hi,
what language change method did you use? THere are 2 ways how to do it.
First, you can change language in Launcher options. Second, in Main menu options. I´ve tried your repro steps and change was without the problems. Try to check your display setting or try to plug it via HDMI cable (or DVI). Don´t forget to check launcher parameters. There is the ,,forced window mode" option.
On the other hand, you can try to reinstall the Arma 3.

Hi, @Lex I´ve read all this discussion.
I see the problem with the accidental triggering of this bug that is very odd. I know, You said that is very difficult to reproduce this bug but without 100% repro we won´t be able to reproduce it again a potentially fix it. It seems, the bug nas very much conditions hidden somewhere in the scripts. If you will be able to make repetable repro we can go further.

First, I´ll ask you about your crash dumps. We have just RPT files. For better resolving the issue the .mdmp and .bidmp files are very important.

You RPT is referring to this fault:

I think the culprot will be somewhere here:

Arma 3 is very consuming to video memory, it´s nothing odd.

First. I´ll ask you about your Crash report files.

Hi, I´m glad to hear it.

Hi, -mod= is sign for loaded parameter. This is related to skip logo parameter in this case. It´s normal. As I said before some servers has reserved spots and some players are kicked any time. BattlEye sometimes decide that player is not allowed to enter to server and kick him out for some reason.

I´m glad to hear it.

The culprit is most likely somewhere here.

I´ve reproduced your descriebed action. (1.66/1.67) Set AI skill to 100% and let them destroy 5x Mk30A. All AI destroyed Mk30A during a very short time without command ,,Fire". Setting 30% skill causes then units will destroy turrets for more time. It depends on their skill.

Thank you for the clarification of the situation.

Hi, screenshots or video will be very good example but I´ve done what you descriebed (1.67/1.66) with SPAR-17. There was not muzzle flash or too loud shot sound. So it´s odd.

Yes, this has been fixed in Internal dev 1.67 but UAV camera is still present in 1.66 by pushing TAB twice but just at 3rd person view.

Behavior conformed.

@mickeymen Hi, did you setup various levels of units skill?

Thank you for suggestion. We can focus on it in future.

Hi, you probably mean SPAR-17 7.62mm. Hk417 is not present in basic Arma 3 assets. Suppressors have to minimize just muzzle flash and noise that could be heard from a bigger distance. But in close distance you are still able to hear shots from rifle even in real.

Hello,
Honestly, I´m not sure if I understand. According to your description, you´ll see just one line of sight in UAV camera in case of changing positions? The point is that the UAV has just one camera so you can see just one direction. In case o ,,UAV controls" you can control the flight direction and ,,UAV turret controls" can mark ground by laser pointer. It means that this seat has advanced sight possibilities.
You can attach the video if you feels like I not understood to you. Version 1.66 have some sensors fixes which can relate to UAV camera too.

Hi,
can you please upload your crash dumps again please. Dropbox shows Error 429.
Thank you

this issue is related even to year 2014. We have fixed this command in first January days. Trust me, it was the much worst when the unit found cover behind traffic sign and so on.
Since version - 1.67.139925 is this behavior fixed and another change is not planned.

Can you describe this issue more properly please? Which situation caused this behavior? How to reproduce this bug? We need to be able to reproduce your report. (attach some picture or video at the best)

Hi can you send us your crash report as Jawsh has said?
We will need .rpt, .mdmp and .bidmp.

Hi,
I´m sorry, I don´t understand the text. Can you describe the issue more properly, please?

That´s very odd.
I wasn´t able to reproduce this behavior in Internal or Stable branch. How many times this state came out of how many attempts?

Try the below possible solutions one-by-one:

There could be some fault during exporting your .pbo so try it export once again. Creating a new folder in your Arma root called SP (or MP) mission can be useful. Also, would be helpful create file tempMissionSP.*name of terrain* or tempMissionMP.*name of terrain* here C:\Users\*username*\Documents\Arma 3 - Other Profiles\Alwin\Missions

are you playing SP or MP?

Try the below possible solutions one-by-one:

Open Launcher>Parameters>Basic/Advanced parameters
Launch game in windowed mode and check upper strip where are all loaded paramteres shown.

@CptGooch Here is the list of errors related to Arma3.exe from your RPT. The most important error is .cfg (config file) and network sync error. Try to repair your game data files by re-installing Arma3. Next problem is video memory space. Run Arma3>Open Task Manager>Check background processes. You can relocate your game data file to another folder or SSD if you have it. The last thing that you can try is to uninstall another unusable or old games, programms and files to release some more space.

@InfraRedLXIX Try to disable this parameters

I´m glad to hear it.

That´s odd.
The last thing that I can recommend you is delete your missions from folder or check your PC due to any viruses. Also you can try re-download your game data files.

@Jawsh thank you for clarification.

Hello,
try to disable this parameter

-malloc=tbb4malloc_bi

It was a obsolete feature.
Although you mentioned DAC there. But the system did not use those waypoints correctly. They was only the abused by this system. That´s reason why the waypoints were removed.
It´s mentioned even in ,,Switching from Old 2D Editor ingame tutorial" on the second page.