I believe any type of item that can store (backpacks, protector cases, even propane stove} is effected from the tents. From what I've seen the effects of that tent were random. This might be a way to dupe backpacks worth of items. The AK 101 was not effected by the tent.
UPDATE* Its worse than I thought. It appears all i had to do was move the storage items on the ground and they dupe on there own. I provided a screenshot of what i am talking about in the file I uploaded on this post.