“Entire formation” and “three or more”. My assumption is the entire formation must shoot at the same target unit and if that entire formation only consists of 2 or less units, it doesn’t get the benefit of Combined Fire. So, for a Comstar level 2 of 6 mechs to get the Combined Fire bonus of -1 all 6 mechs need to shoot at the same target.
My questions - Level 2, three of the six mechs shoot at and kill the target, do the remaining three mechs lose their combat oportunity for that turn or can they choose a different target? If they can choose a different target, do they get the -1 for Combined Fire as well.
Edit: Sorry, AS:CE, Page 108, Tactical experts (Combined Fire)