Granted, it would make sense that you could, since it has to be modeled in some way, and yes, ammo runts have their own little models on their own bases, but you cannot target them because they don't change the Boss's IC status. That's the thing. An easy way to tell is if an add-on to a character changes its status and adds more models, it is no longer an IC and therefore his retinue or whatever can take the hit for him. Teleport Homers can't be targeted, yet they're on a separate base. Same deal here.