Could you please elaborate on not being 1:1?
Because I recorded a macro that in MW19 would move the gun to the point that was initially on the edge of the monitor. And in BOCW the macro when executed moves the gun to that same point on the edge the field of view with that exact same sensitivity.
Yet you say it's not the same, revealing that it does not 'feel' 1:1 and that you needed different sensitivities, possibly the inconsistency I am talking about?