Ginger wrote:
Note, this is similar to the question of the 'flying' MW attack;
Assume there is a Terminator unit in B-B with a Guardian unit, with another guardian nearby. Here the 'normal' hit is applied to the unit in B-B and then the MW hit is allocated to the nearest target even though it is not actually in B-B. As before, it is assumed that the stand is only generally representative of the Terminators actual positions, and in this case the Terminators are actually moving forwads, swatting Guardians as they go. So although the MW hit was generated by being in B-B, it is actually allocated elsewhere and not lost.
This resolution system came about so as to avoid units with MW CC attacks losing their hits if the models they were in b2b with we're eliminated by non MW hits.
Once the formation is able to get into Assault it is assumed that the combat devolves into something a lot less orderly than the nice arrangement of stands on the table.
Being in b2b or not really only determines what combat values a unit can use in the Assault. So if the Terminator stand makes it not b2b then it can use its CC values.
The skimmer rule is an exception to this which allows the skimmer owner to force a unit to use its FF value. So you assault your opponents Termies with units with the Skimmer ability and force the Termies to not use their more useful CC value.
The skimmer unit ability just circumvents the usual determination of which combat value a model uses. It does nothing else.