Combi-Flamer

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

Each shooting phase you can either fire just one barrel of the combi-weapon as per the normal rules or fire both barrels at the same target with a -1 to hit modifier on both shots.