Well here it goes , i am playing on Mid rate server a quite some time yes its L2j .
Recently when i was pvping i saw 1-2 Mages and 1 HE just disappear without any clue like re-log .
First i though well maybe they used BSOE but my PC just didn't register animation .
Then i saw them do it again like 5 times more at Fortress and i was like wtf? Then i though well maybe they got the Talisman - Hide , i tested it and it isn't working like that we have to wait like 2 sec to cast it before it makes us Unvisitable .
Then i made some research on google and i found out few things like some Cheat and stuff about Hide like it sends some packages and things like that which makes your char just Banish ....
They said at off forums that the cheat is called Radar or smth like that ...

So is that possible? I really want to get back to players who use that sh1t they are the strongest clan on the server atm and as it seems they are just finding out anykinds of bugs just to abuse em .
I do not want to lie at the server forum i need to be sure ... about it before i post

radar cant do that, but walker can force quit (same as critical error)
If they disappeared but were still playing (hide), then its some hack they got which is disturbing the data they send to the server (but I never heard of a working one for recent chronicles)

imho its visual problem which does not display bsoe animation
it has happened to me too

hax hide - l2ranger ftw
some ppl got banned for this on official servers

If its 3 doing it all at once, they aren't using Party Return. No one in the party would have it. They aren't using bsoe either, because you would see them leave at different times.

Its most likely a single player using walker, and playing multiple characters at once. As the guy said above me, walker can make a force log during pvp. I hate these guys also.

It's called either cheating or 'gamemastering'.
If i'ts l2j,there are 80% chance ,that they are game masters (the only logical explanation) and they use invisible command.
Never heard of such a cheat ,which can make you dissapear in instant.