Sound_Alarm is defined in cfgVehicles and has a link (sound) to cfgSFX. the CfgSFX Class contains a list of multiple tracks which get selected at random which doesn't get synct.

"sounds[]={ "track01", "track02", "track03"};"

class cfgVehicles
{
class Sound;

class myCustomSound: Sound
{

		scope=2;
		sound="myCustomSound_SFX";
		displayName="myCustomSound";
		vehicleClass="sounds";

};
};

class CfgSFX
{

class myCustomSound_SFX
{

		sounds[]=
		{
			"radio01",
			"radio02",
			"radio03"

		};
		
		name="Custom Sound";
		
		radio01[]=
		{
			"testsound_01_40sek.ogg",
			6,
			1,
			50,
			0.082999997,
			0,
			0,
			0
		};
		radio02[]=
		{
			"testsound_02_40sek.ogg",
			6,
			1,
			50,
			0.082999997,
			0,
			0,
			0
		};
		radio03[]=
		{
			"testsound_03_40sek.ogg",
			6,
			1,
			50,
			0.082999997,
			0,
			0,
			0
		};
		
		empty[]=
		{
			"",
			0,
			0,
			0,
			0,
			0,
			0,
			0
		};

};
};

by creating "myCustomSound" playes can get one of the 3 different tracks(radio01 - radio03) + the empty one.

I don't think that this is the problem here, I wait quite some time until I open the taskmanager.
The freeze is not always a the same moment. (different process in loading the mission and terrain (loadingbar).
And happens even after I already was previewing the mission so the terrain is still in ram.(afaik)

btw. .rpt and windows errorfile (.evtx) is attached.

I don't not use mods so it is kind of hard to test.
I hoped you could narrow the cause with the windows error log I provided.
(occurrence is 1 in 100 or less)

Can confirm, it's AGM related.

Sry, I meant AI [b]vehicle[/b] Commander.

AI as a vehicle Commander doesn't search the area with their optics.

AI Commander are incapable of using their optics to spot enemy units.
e.g. try standing silent near a tank but not in front of the gun, they won't notice u ever.