Val did some interesting stuff. Although, the knife disarms is essentially Aikido, looks impressive (but very hard to pull off in real life). And the guy holding the rifle purposely went so close to him, basically letting him grab it (nobody with any real training would get that close). If you look at many Systema and Krav Maga videos, they all showcase very similar disarms (with some idiot pointing the gun at you and coming so close so that you can grab them).