AVE Does this apply to all weapons that is used with BS attack - direct templates included? Can blue Wolf use 2 HFT in his active?
When a unit has "BS Attack (+1 B)" then you get +1 burst in your active turn whenever you declare a BS Attack skill or a skill that uses BS Attack. So yes, it applies to Direct Templates as well.
If it's included in the Profile it applies to all BS Weapons. If it's inlcuded on the weapon only on the weapon. Note that Burst MODs only work in ARO if they explicitly say so (BS Attack (+1B) doesn't). So yes, Blue Wolf has a B2 Heavy Flamer, B2 Panzerfaust and B5 AP Spitfire.