ok, what this glitch does is spawns 2 boxes on the map.
How To Do?:
ok, this glitch needs exact timing and the host cannot do it!
first get a fire sale.
{this is where the timing comes in}
wait untill the fire sale is 1 blink from going away then use the box.[cant be host]
then the guns should roll like normal then once it stops on a gun the box wont let you take it then the gun will go up with the box. then the box will spawn somewhere else.

(Notice: once sucessfully done do not get another firesale for it will take the added box.)

im sorry for not providing the proof but i will get the clip from my friend.
the clip will not be a tut but it will show that there are 2 boxes on the map.
he sterted recording after we noticed that there were 2 boxes on the map.


CREDIT:
o M o N s T 5 R
l i-------[shot clip]
siick breakdown
DnG Xenon