Great game altogether. Still need to beat last 2 or so lvl's but I've been having a good time. Only problems I've seen aside from not being able to exit the game. (As in the big red X under the sort button doesn't work, assuming that is the exit button.) Is the fact that I can't get any Anti-digestion pills. I've gotten up to 200% natural drop rate. Even boosting the rates by an extra 500% via difficulty spike. I've yet to see a single one of the things.
I'm also not completely sure about this either, as it wouldn't make much sense. But I think if enemies are killed "before they get on the map" so to speak. (In other words, you have unit's like Kitsune-Pike ladies. Just holding down the front line. Where the enemy's spawn.) Then they don't drop any supplies, ever. Either that or for some reason the Kitsune's do not allow enemies to drop supplies.