For the moment, the developpers of eAthena have stopped working on the code for Ninga / Gunslinger so it stays on a standstill.
When everything is completed and added to a stable version, it will be added to HeRO, until then, be patient
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at or repair."
