Krav Maga has nothing to do with firearms except defense vs. firearm threat. As for killing it is always subject to local law. It is not that I teach to kill just to kill, but I teach to kill for self defense. If you do not teach how to kill with your hands, you do not become aware of what can be done to you. Then you need to sort out everything and count your options.
If you have a kitchen knife and you are a woman that is about to be raped, you need to think in the worst case scenario, do I want to be raped and live with the memory, or raped and killed after that or do I want to kill and perhaps get hanged or perhaps escape for the rest of my life in certain jurisdictions.
If you do not have that mindset, your chances to defend yourself are completely unrealistic - You are playing with some sort of nowadays competitive sports jujitsu!
If you learn how to control your opponent in the most efficient attacks you are better be informed to know you really do not have time to do Jujitsu. The intent alone of a knife stabber is sufficient to kill him as in a split second he can get you killed.
You can make the same argument on a single puncher killer or perhaps a domestic abuser or a group beating that will beat you up to the last breath killing you slowly with hands, kicks, or clubs. If you lose the element of surprise, you most likely will lose your chance.
A Jujitsu Master that spent most of his life on the Mat dealing with mostly throws and submissions techniques trying to devise techniques for Hand to Hand fighting, his knowledge and experience in the grappling sport surely will have some few good ideas.
Traditional jujitsu also have weapons and defenses vs. weapons techniques. Those however are kept for Demo Mostly and for generations have been done in a form of cooperation between submissive projecting attacker and aggressive defender roll.
The bulk of the daily techniques and sparring practice is throws and submissions, armbars, and chokes. Kicks to the groin suggested for self defense on occasions and defenses vs. slaps with block and throws are done as well.
However there are usually no lessons of how to generate proper impact, and how to Lunge with Impact and reach the hotzone. Its long road of learning names of Judo Throws and Submission Techniques and some suggestions and attempt to use and apply the bulk of Jujitsu into self defense.
Rumors that Krav Maga does not put enough training on the ground grappling as well...Well if you get to the ground you need to be aware of two things. You learn how to fall safely on your own even as a preemptive tactic. That way you are not tossed on your head or on your shoulder breaking bones or getting a concussion, and this gives you the opportunity to continue.
But ask yourself why you did not train well to prevent letting someone from doing that to you first. If you are still conscious when you took a fall, or someone happen to surprise you and sit on top of you and did not hit you as of yet, you can hit one of his pressure points which could be reached in his head and neck or groin and pelvis area.
You might need to use some leverage prior to that if you sense an immediate discomfort on your neck from a choke, or use leverage to get out of a hold giving you a better reach to strike a pressure point.
There is not much sense of using Jujitsu push and pull forces to try to break out into a different direction and use the momentum to counter with arm bars or headlocks. You could if you have the strength and the know how, but why not punish someone that decided to use your body as a mattress.
Generally the attitude of Krav Maga about getting to the ground and staying there with an opponent or without is that it is too risky. You want to finish and move on. Not that it could not happen that you get to the ground... If it does and you are declared still functional, you can use the escape and counter principles you have learned and you feel confident from the grappling games you did just to get the sensation of discomfort prior to the escape and counter.
The general thought about ground techniques is that they are reserved to women that cannot decide what they want. Yes I am joking, but there is no reason you engage in series of push and pull struggle to see who is more proficient in Jujitsu or if you simply don't have sufficient push and pull force. It is much easier to poke a soft pressure point or tear the windpipe.
There is also a belief that many fighting sports are designed for people that prefer to play in one method or another. While there are more than one option to control an opponent physically, Pure Krav Maga chooses the most efficient ones, to cover the most safety possible for its students yet maintaining the training method efficient.
Finally, its all about the mindset and delivery of the training curriculum: Are students encourage to spend years of adding leg and hip throws and ground submission maneuvers with the lethal elements extracted from the terminology and the training? Yes Jujitsu can kill with a choke or perhaps leverage on the neck if learned properly(which most schools do not teach).
However, students recognition of all the lethal elements, their ability to maneuver around them and knowledge how to use them is crucial even in ensuring a realistic challenging training partner during practice!
If you are constantly aware that you can pluck the throat, squeeze the testicles and shove your fingers to the eye cavity, how can you afford spending most of your training time attempting leg and hip throws, submission holds and armbars where your training partner has many splits seconds during these techniques, where he has at least one free arm and since you are in close range, he can reach one or more of your pressure points in your head and neck or pelvis area? The only people that will not attempt to use these pressure points are training partners that were brought up not to use them in a traditional training Dojo!
Watch the Pure Krav Maga Grappling Insight Video!