If you have an engineer, try this:
1. Take your flamethrower out.
2. Aim your camera into the ground such that you got a bird’s eye view of your character.
3. Use #2, Flame Blast. See how it goes straight into the ground because it follows your camera?
4. Now turn your character to the right one pace, and turn him back to the right again (ie, press d and then a).
5. Shoot Flame Blast again.
6. Notice how it now shoots straight ahead of your character instead of going straight into the ground like last time.
Wat,