Your mate in the Sub NB may be confusing C3I with combat system. There is very little in way of combat system in terms of missile systems,CIWS,EW etc aboard the ship and that part still is "on" T45. However, to make "strike" work, you need access to all sorts of data, which in turn drives comms IER etc. There is very little point shoehorning ISTAR product into a T45 and then having to squirt it across to an accompanying CVF - ditto battlestaff when fitting sufficient space in a size constrained ship, compared to fitting it in something eight times bigger......