I’m just making sure that I am reading this right for the spec fire and when it comes to a pure fireteam. spec fire is a -6 when range is 0. Then you add the +1 BS for the regular fireteam. Then when your at 5 man team you add +2 because your a pure fireteam. So in total you have a +3 BS? so in turn when firing a GL as a spec fire in a fireteam it would be -3 because of the bonus of +3 BS of a pure fireteam and being a fireteam.
Mmm.... With Speculative Fire you get BS -6 modifier on top of range. No Mimetism or cover is involved. B of the weapon is reduced to 1. With Fireteam, you get BS and B modifiers.BS bonus are applied to Speculative Attacks. B bonus are not.