Here is a Memory Access Violation crash log that I've saved to send it to you.

It happened while I was playing one of the Prologue missions (the one in which you have to control if the lost AAF convoy is alive and then you engage some insurgents) while I was engaging enemies: a grenade exploded in front of me but I didn't die...but probably the nade was deadly to the game, and killed it by making it crash. :D

Here is the crash report :)
https://db.tt/tAZ6Bck6

I think it's connected to my HW config since it's not the most suitable for Arma (it's about 8-9 years old), but I'm not sure the crash is linked to it, since I've already finished the game once.

I have some mods enabled, but nothing that I think can lead to any crash, since I have just the "Arma official mod" (P90) and some additional campaigns which don't require any additional mod (no CBA or anything else) and I was playing the vanilla campaign :)