Flame cannon

360 degree fire arc. Flame cannon has a 12" range, this is where you can choose to place the flame template.

Small flame template. Partial models, hit a on a 4+. Fully covered auto hit. In close combat, auto hit the target you're fighting but no template. 
If target is not killed, check to see if on fire on a 4+. Further instructions found in Wargear book