I think "C'mon" in the first place is kind of unclear and I would really prefer it if the NA version had "To me" instead.
I think it would also be nice to be able to tap parts of the map to indicate to others where to go, even if you aren't actually there.
Yeah, one thing that bothers me is the inconsistency in language between the versions. "C'mon" to my understanding means, "You can do it!" not, "Come here!". It'd be nice having the commands as universal, so everyone would have "To me" or something; just something that translates well across all versions.
I always find myself spaming the life outta the booyah button to try and warn someone about something
Whenever I use the "Booyah!/Nice!" command to warn someone it usually flops. They'll just signal back and not understand that I'm saying, "I got splatted here, be careful!". I think it's understood more in higher level play, but in lower level play? Not so much.
And I suppose Haunt substitutes as a, "I got splatted here!" kind of thing, but then again you may want a more substantial ability instead and Haunt takes a bit longer to active compared to a simple command.