What counts as backstab for a "behind the enemy lines" penance?

[고양이 연금술사]

I`m running Loner aura for 2 weeks already. It`s a miracle if i get 3-5 kills per game for this penance and it`s cuz only time it`s actualy works - is when i`m ambushing enemies with stealth and even then it`s not guarantied! No matter how i dance around them - it won`t count. Do enemies have to be ambushed only? Do i have to use only knife and rapier , cuz apperantly, other wepons hit their side or smth, idk? Do i have to one shot them, cuz 2 hits do not count?

[BrownDiapers]

block push to stagger elites and quickly dodge behind them while they are staggered and heavy hit them to back of the head. if you do it right then that should be easy 20-30 towards counter in 1 match
also poking and overhead weapons are best at killing them to make it easyer

[Pkangel]

I recommend running this in tandem with shroudfield in a particular build to make things a little easier on yourself - just pop shroudfield run behind your target(s) in stealth use a 2 handed weapon and slap 4/5 per usage. If you make a good build you can constantly have uptime on shroudfield ~80% of the time as in nearly permanent invincibility. When I did the penance I was able to net around ~20kills - 40kills per round in heresy diff. GL some of the penances are a REAL grind like blessed be thine aim which is a actual slog.(I average like maybe 8/10 a round on that penance and you need 500) PS. Use a maxed weapon and get stuck in constantly your job is to be on constant flank duty facetanking everything and dishing out death.

[고양이 연금술사]

Thanks for the tips guys. I think i`m doing this just as you said, but since it`s not wroking out - it must be a skill issue. Hope i`ll get good at it soon! <3

[Arani]

Been so long I don't remember what I did with this, only that it was pretty fast. But reddit claims ranged works so I probably did something like Accatran shotgun with Man-Stopper & Scattershot, then use stealth to sneak behind and delete a group all at once.

Enemies switch targets off of you on stealth, so you can just run & slide & dodge your way to behind the ranged normally, then tap stealth so they turn away to look at your party, and then cleave & kill 1 group with that autocrit from stealth and immediately after try to kill as many others as you can before they face you.

Doesn't have to be a shotgun ofc. but zellies have nothing else that can cleave like that thing can. The stealth autocrit & +100% finesse dmg bonus means that first shot will decimate everything in a cone. Or use ADS for more dmg but a tighter spread.

[고양이 연금술사]

To those who`ll came here later: There are certain Scab shooters that wear only west with no sleeves, they DON`T count as ranged, either for this penance or for Volley Fire (also flamers, i think they should).
That was my main issue. Others are:
Sometimes i just didn`t see that i wasn`t alone, since cohearancy was 2 by default;
I tried to backstab "downed" enemies, where they`re lying on the ground, clearly showing their back, but it`s only the animation part, they`re in fact, were facing me;
I tried gunning them down, but no matter what old posts say - it`s not working anymore, shots/knives - won`t do. And since knives won`t wrok - i suggest stun granades they could give you many backstabs in one good rangers chunk, but that would make build uglier (i don`t like those blue nodes leading to stun nade)