I was on the new experimental build for 1.06 in Tisy military tents. My character was wearing the basic military vest when I came across one of the old smersh vests. The vest in question was not properly sitting on the wooden tent floor, but partially clipped through it. I opened my inventory and dragged the old vest into my hands and the new vest onto my character, then attached the smersh buttpack I had been carrying to the new vest and transferred the contents of the old vest into the new vest.
I then proceeded to the eastern barracks. It wasn't until I was in the quonset hut that I realised that I no longer was wearing the smersh vest. I could not remember when I'd last checked that I was wearing it, but I know that I did have it on prior to leaving the tent area as I had attached another grenade to it. I retraced my steps all the way back to the western tents, but couldn't find it or my old vest. I did find the assault vest that has the biggest capacity (can't remember its name) and put that on. When I was back over at the eastern barracks I removed the ammo from two LAR mags, but upon inspection of my inventory, could not find the ammo (most of my clothing containers were full by this stage). I retraced my path thinking the old bug where they dropped on the ground had returned, but there was no sign. I was then inspired to think that maybe I was still wearing my old vest, so I removed the current one into mu hands and logged off. When I relogged, my original vest was still on my character with two stacks of .308 ammo, but nothing else.