If you haven't already done the task, then collect the 3 containers first then do the kills, if you die the containers stay in your stash, so you only need to do the kills again, at the end put the containers in your bag 1 by 1 then back in your stash, the game will recognise you've collected them. Just don't hand in each task until you've done all 3 tasks 👍 good luck as its a bitch of a mission. I didn't know when I did mine this was possible.
