RAW on Hazardous terrain says:
"If a Fireteam starts its Activation in base contact with one or more pieces of Hazardous terrain, it takes a Hit with Strength equal to the highest Hazardous value of those terrain pieces. Similarly, if a Fireteam moves through one or more pieces of Hazardous Terrain, it takes a Hit with Strength equal to the highest Hazardous value of those terrain pieces..."
Question: When Hazardous Terrain is created and dropped on a Fireteam does it hit for damage at that time? Or only on the affected Fireteam's activation?
Examples: Prince Unathi's Poison Rocket/Cloud, or the Dreadnaught's Chemical Fogger.