SO yes, basically...
Japanese NCOs all get the selectable role/kit-limited katana alongside whatever primary weapon they have... Another weapon in their kit lets them shout for a charge with an animation or them raising the katana in a 'foward men' position
I think, specific to the Japanese, all weapon kits should have one position which is either the byonnet or katana or rifle (For those with neither blade) where they shout a long 'banzai'... specific to a banzai charge ofcourse (and maybe Russians should have this feature too since they also used mass charges)
Then you get the whistle for other nations where it is pertinent, for the NCO limited kit which acts similar to the banzai call... to call for a mass charge and to 'scare the hell out of the enemy' - Its basically a tactical weapon
Bugle is similar, specific to British and early map American's I can imagine... Doesn't need to be a pickup kit come to think of it, all NCOs can get it.. thanks Mudra, for indirectly helping me put my thoughts together :-)
bagpipes on the otherhand are not NCO specific, but a pickup kit in some maps where it was made use of in real life... I'm sure its not just the movies - The use of such sound instruments is like the horn for cars... the more you press it, the more the music (For bagpipes) or sound plays...
now the difference between this 'charge' and the one in the comm-options is that the latter is for calling people to move it on, this one is specific to calling for a charge (And the shout can go on for some 10 full seconds.. it should last to make the screaming charge that more scary), something specific to NCOs, not everybody. If ever the devs get to recording their own voice overs (I really hope they would), the difference should be clear in that the comm-option 'lets go' is going to be more like 'let's go, let's go, lets' go' or 'hussle up', while that for the NCO kit is more like 'aaaagh!' or 'Hazaaar!', 'C'mon lads, For god and countreeEEi!', 'Banzai!' OR the 'waaaah!' straight out of Enemy at the gates...
We have the tools, but I think its time we begun to have the feel of WW2... A good 70years ago - Was was something like a cross-cut between us now and the wars of the Victorian era and this should be reflected in gameplay if possible
Now to make this even more effective, there needs to be a way of making it that large groups move together as would have been really the case rather than the solo sneakers we have now - But this is an argument for another time.. And I need to put my thought together on that one.