So, the only thing that confuses me in that is the way interact is worded, in the situation we had ingame, it was parker's turn, and he started engaged... his first action was to disengage, then he shoots someone and inflicts at least one damage - draw the attention states that a friendly model takes the interact action on a discard, and as he is himself in his own line of sight, can Barrow interact even if he disengaged this turn, since you can't declare interact if you disengaged, but he is an eligible model for that "take an interact action" part