109 Can't Ignite Fuel Storage Tanks

[EZ1]

This is one for the developers...

I've just been playing around in the cross country quick mission to get more familiar with startup procedures for various aircraft. After take off I usually fly around and shoot at things for a few minutes. I just shot up the storage tanks on the west side of the field from a 109 E3 and nothing happened--just puffs of impact smoke. I then took a Spit and did the same thing and bang they exploded. I had seen this before when flying the 109's in the France Free Flight quick mission, but I assumed that not all storage tanks are full. This time, same tanks different results.