Apart from general items usually packed in emergency bags, that's all I can think of for now. [ He dons his thinking cap again. ] Although, if we referred back to previous missions, we could reverse engineer what should have been vital supplies during those particular events. Backtrack and note down the what-if's.

[ ... ] You think the train can give us a box of Swiss army knives? [ Fat chance, but he'll say it out loud anyway. You never know! ]