diff --git a/missions/ProductionCountdown-20161212.md b/missions/ProductionCountdown-20161212.md
index 1f11d41..26c2ab8 100644
--- a/missions/ProductionCountdown-20161212.md
+++ b/missions/ProductionCountdown-20161212.md
@@ -91,3 +91,6 @@ I found a serious bug in the way that values are being interpolated in `interpol
 
     Draw break even analysis graph with revenue, variable costs, fixed costs, gross profit
     Highlight towns that could result in sustainable utility companies
+
+    Consider altitude
+    Include roads