I am also experiencing this issue, and I would like to add that this workaround should be implemented officially through STEAM as soon as possible. Because STEAM keeps replacing the fixed launcher with the old, currently official one

Also may I apologize for the wall of screenshots, but I simply had a ton of those and did not know which ones to choose.

I'm not sure about the policy of this forum regarding writing in old posts.
But I would like to mention that it would also be cool to adjust the .338 Norma Magnum projectile properties:
It originally was developed to allow people to load rounds with absurdly low drag coeficients, while keeping the same overall loaded lenght. Also while the case itself if quite a good bit shorte than that of a .338 LM, it's volume is not too significantly smaller than that of the .338 Lapua Magnum. Specially since the .338 Norma Magnum both has it's cartridge seated slightly lesser deep than that of the .388 LM, while also being able to use (5%) higher chamber pressures.
And the fact that the .338NM has the bullet seated a little shallower makes the already not too significant cartrige volume diference even smaller, and the slightly higher operating pressure more than likely makes up for the slightly lower volume (if not even slightly MORE than covering just the difference)

Also, could the sawed off version of the 12 gauge double barreled shotgun be in the pistols slot? Because currently in ArmA 3 carrying a pistol is kind of actually detrimental, as it is both additional weight, you will likely have to carry at least less of "something" (such as a grenade, first aid kit, or ammo for for the primary which is better than a pistol in every way...) in order to make room for pistol magazines.

Oh, I am not sure if this is the propper section, but I decided to sniff a little in the CFG files of the new "Promet MR" and on top of the "gas regulator" detail (which I REALLY liked!), I noticed something at least curious:

I bet you never used a Navid before...
EDIT: Its magazine clips through the ground BC its bipod is so short...

This is something that is known for a long time IIRC, but would be lovely to have some diferenciation between the Katiba's 6.5mm and the MX's 6.5mm

Maybe those items are free for everyone? IDK since I have the DLCs, so I can't test it myself

To be honest, this DLC leaves quite some big gaps inmost arsenals.
For example, the Spetsnaz are missing a Marksman rifle (of any sort, specially since 7.62x39mm is very bad past some 600-800 meters, it would need to be in some other caliber like 7.62x54mm...), and IMO it would also be welcome for them to receive something similar to a PKP Pecheneg MMG (BC who doesn't love some DAKKA?)

I know what is the cause of this issue. It was basically that the DEVs forgot to remodel the ammo stampings.

Turns out that to reproduce the issue it is basically a matter of pretty much just touching the game Launcher until it crashes. The game did launch before the launcher crashed in this occasion, so I am able to play it (at least SHOULD BE).

I am having similar issue. However, ALL the AI VEHICLES are NOT affected, while ALL the AI infantry are affected. I might try to rebuild ALL my mission systems from scratch to see if it fixes...