Gathering some interest, I see, hue hue, lovely :3

And yes, I like the basic concept of your plot, but I do have a few questions, so correct me if I'm wrong - the plot revolves around former members of Nobunaga squad and The Jacks, right? They are not the same people? 

It could work nice to have some of former squad members seeking out revenge or something along the lines (especially since the name is the silent legacy, actually fits pretty well with the concept)

But I am not a big fan of RPs with canon characters, so I was actually thinking of making a fresh set of Captains, which makes me think - if Yamamoto is not in the RP, the plot should be tweaked around a little to make it matter and all that more connected.