In my opinion, the freecam is not necessary to add it in WAC 4.1, OK ... it is nice but not very useful ... explain me why we need to add this in WAC 4.1?
Most of the time people use TC (also when submerged); and don't forget that WAC 4.1 must be fully tested * for integrating this freecam mod.
* Must be tested with several subs, ports CTD's etc. etc.