I would be interested reading the discussion about the frenzy/ Impetuous and how people envision it in fireteam in a practical and functional form, but this is probably not the thread for it.
I don't think the impetuous order problem you mention will be any different than what a fireteam does today. The impetuous phase is at the beginning of a turn, so if a trooper uses their impetuous activation they leave the link then and can't be moved up field with the link. Currently, if I have an impetuous model in a link I can disband that link at the end of my opponents turn, thereby allowing the model to generate its impetuous activation on my turn. Dodge is a short skill, but it has a movement tag. What I was trying to propose is that if the fireteam leader declares move-dodge, the other members should be able to move-move. Or if the fireteam leader declares move-shoot, the other members should be able to declare dodge-idle. In the active turn, the fireteam leader is the only model that should gain any fireteam bonuses. I've been playing with fireteams since they were first released and I've never enjoyed the fact that the non-leader models just stand there and get shot in the face whenever the team leader activates. Eliminating the cover bonus and triggering frenzy while in a link are really the core of what I'm getting at here. I proposed generating impetuous activations while linked since the ruleset already has a system for irregular activations, but I'm open to other approaches.
I don't think you would need to physically measure every pair of models in the fireteam. You would measure from the one that is most central to the fireteam and if one model was outside ZOC of the central model, you quickly measure the ZOC of the outlier to see if 2 other models are within range.
