Banzai is just an ancient psyching up cry, so that's cool.
Sharpshooters I don't like. Bad company I like, it sounds badass, without actually saying much. After all, one could be considered bad company because one farts.
Stupid Troopers....that name sort of makes fun of itself, doesn't it?
A name should have a bit of "pow" and "oomph" without going over the top. Assassins is over the top. At least, in my opinion.