(This is on Xbox by the way) For me I have 9,000 ammo for one category and it is hard to only transfer a few hundred into my inventory beucase I can when trying to put in have much ammo you want tk take out it is a slide thing that can only go down one at a time so to choose to only transfer a 1000 ammo I have to go down 8,000 one at a time which takes for ever. You should be able to go down hundreds at a time instead of just one.