If I have a crewed weapon such as an MMG or AT gun where the various crew act as a squad, gunner, loader, commander etc do you apply the +1 for each squad member when the gunner fires?
You only receive the additional bonus if all of the non-gunners also have ranged weapons and are within range. If you have a gunner operating a big gun with a range of 30" and the loader and commander have pistols with a 10" range, you only get the +2 to the gunner's shot if he is shooting within 10". The idea is that the other members of the squad are also firing upon the target so as to suppress the target from dodging the main shot.