M130 mini gun both sides firing 7.62 and a M60 on the ramp again firing 7.62 (and not 50 cal as it says in the vid). Pretty boring video until it gets to the night time flying!
Nice find! Filmed in Sweden, Swedish pilots from F15 (a wing that was disbanded in 1998), the helicopter is a HKP4 (Boeing Vertol 107, last one in Swedish service in 1992), I suspect the film was shot in the later half of the 80’s. The pilot probably had plenty of practice using it for hunting suspected Soviet submarines.
I had no idea that big helicoper could do moves like that!