Auto Backstab fails to backstab quite often

[buyBread]

Describe the Bug
Auto Backstab 2/4 times fails to backstab. Last time I've used Nullcore the fail ratio was far lower, practically wasn't a thing in most of the games I played, so I consider this an issue that needs to be fixed (this only applies to Rage modes, Legit and Legit Backtrack, iirc, worked "alright" last time I used them).

To Reproduce
Steps to reproduce the behavior:

1. Enable Auto Backstab
2. Miss around half the backstabs

Expected behavior
Hit backstabs. I don't mind missing sometimes, but not on the level where half of my kills using this feature aren't backstabs.

[BenCat07]

I assume this to be an issue in our backstab detection code and ping being a thing. A foolproof way to (almost) always be sure if you can backstab someone is to look directly at their ent origin, so i will make rage autobackstab only look at the entity origin, no slowly rotate stuff anymore

[BenCat07]

Turns out this may be an issue in valve's implementation of Normalization of 3D Vectors, as 3D vectors get assigned a z value of 1.0f when they really should not have 1.0f, but 0.0f as a z value, which breaks our DotProduct Math

EDIT: nevermind i just can't read

[ghost]

Can anyone verify this issue still persists? Considering it's almost two years old, I'm sure backstabbing has improved greatly.
If any issues still exist, post config and video please.

[iraizo]

If not the new backtrack branch will fix it.