The ones in the pictures are the AGM-114K Hellfires, which are laser-guided. They work as a complete weapon system and have nothing to do with the Vikhr. They have their own parameters and etc. After using them for quite a bit, I came down to these conclusions:
They have a slightly shorter range than the Vikhr
They travel much slower than the Vikhr
YOU CAN FIRE THEM AT A VERY HIGH ANGLE! (As far as the Shkval sensor can look left/right)
You can guide them all the way OR you can use them as a sort of fire-and-forget type of weapon by turning the laser designator off after firing (It will continue to fly towards the target and will hit it if it's not moving)
You can carry up to 16 of them and they look AMAZING! :D
And unlike the Vikhr, you can change their flight trajectory as much as you want