This isn't a bug but a programming error. Simply, the description has not been edited to reflect the actual amount of rounds given. There are other ammo boxes with similar typos. It seems that all ammo spawns as the maximum stack from ammo boxes or as loose rounds. This is likely intentional.

Were you driving in the debug zone? (the area outside of the map without any trees or grass)
Any items in this area will be gone upon reset.

Several times I have been driving as the server reset. I was at the position where I entered the vehicle and the vehicle was where it was when the server reset.

Sometimes your status bars can become "Stuck". Try getting a friend to punch you once in the body and please reply whether it fixes the issue or not.

"Absolutely no"

Just because you haven't seen an issue occur doesn't mean that it can't happen, you tool.

This happened to my friend with an explosive RDG-5 grenade. A player camping nearby who knew where my group was camping had a fresh-spawn try to jihad us with the grenade. A member of our group managed to shoot him down before he got near us. My friend tried to recover the grenade about 20seconds after the fresh-spawn's death and got blown up as soon as the item was in his inventory.

It's the ignorant people like yourself who "contribute" useless bug reports which contribute to the downfall of this game. You purchased a game pre-release. They even told you it's pre-release, and that some builds may not be for your play-time enjoyment. Yet you continue to whine and moan about a game which is currently in dev.

If this game was past beta and we still had issues like this then I would be motivated to agree with you.

EDIT: Hackers gonna hack, and the more they hack the more the dev team will be able to remedy the holes in their software which enable hackers. You want to whine about how they should fix hacking now? What do you want first? Well, I'll tell you, getting hack-proof first is not feasible since the content to be added this hypothetical "hack proof patch" (which you so desperately desire) will just break any hack proofing which was done.

You have to wait for the game to be finished to get rid of hackers. Stop moaning.

I managed to get unstuck with a lot of "fast forward" and "vault". I had attempted this initially but I had success today upon relogging and attempting once again.
Thank you for your attention.

this is a regular server not hardcore

Just my two cents:

Were you playing on a server to which you had a reasonably high ping? (~ 200 ms)
I've found that if you have a high ping it's very easy to clip through objects and walls.

It's an ambient sound and 100% intended.
"Ghost" sounds are not something that is separately programmed. Ghost sounds are the regular sounds persisting when they should not. Thusly, they could not be made to be very low since unless they made the volume of that specific sound which is ghosting very low.
That being said, the ambiance is really annoying and I would love to have a sound slider for ambiance, player sounds, zombie sounds, guns etc. I'm sure such detail will be added in the future.