I would use the interpretation that causes less followup problems.
1)Ignoring 5 boxes of each track is quite clear.
2)Ignoring 5 as a combination, you would need to ask yourself, where the priorities are. First from one track, then from the other, in temporary order, or the one that has the most damage first.
For 2) i assume, they would have added more clarification, so it has to be 1).