Confused on GWX 2.1 playable VIIC/41?

[prowler3]

I've read the GWX 2.1 manual RE the VIIC/41 playable sub. Was not the VIIC/41 available as a player sub in stock SH3? If so why does the GWX VIIC/41 overwrite the VIIC instaed of the available VIIC/41? The data folder for the VIIC/41 has the CAM file which is one of the clues I found that leads me to believe this was a playable sub. But, I also see where the line "HumanPlayable=NO ;;YES" has apparently had a "NO" inserted? The manual states that there is a limitation on the number of playable models, but if they were both playable before why not just change the VIIC/41 data?

I know I'm missing something that explains it all .

As it is, when using the GWX VIIC/41 sub mod, there seems no reason to spend any renown on acquiring a VIIC/41 when it becomes available in game...or have I again missed something?

Thanks!