This has to be a dumb question because it is in the first recommended game, and nobody has asked it:
I can't find any entry on how you steal the medical supplies before they inevitably get pushed into the combat zone. We're in the middle of the game.
First, the Medical Supplies are stationary. Meaning it doesn't move until the Inevitable card pushes it along Other cards move around it.
Now, if your doing that correctly, read the card Skyhook. Which basically says pay some recruit to steal the medical supplies. How much depends on where in the verse the medical supplies are.