|Values:||Boolean values: yes or no, true or false, 1 or 0|
This flag was presumably intended to control whether this TerrainType can catch on fire (from incendiary warheads), and subsequently spread fire to neighboring trees. However, setting it to false doesn't work.
If the TerrainType has any of the following settings, it will not catch fire:
- is any other than , the default of TerrainTypes