FWIW, the Russians used an interesting parachute system like nothing we (USA) use. It's a combination static line system and free fall deploy system. The static line deploys/extracts a small drogue chute, the troops drop to a preset altitude at a reduced velocity free fall because of the drogue, and then the main chute is extracted by the drogue by some kind of automated system. Don't know if the auto system is timer based or altitude based or both. And it has a steerable ram air airfoil type canopy. Fascinating.
LINK
And it's hard to be certain but in the video it looked like one jumper's drogue collapsed/burst during his drop. They have a manual reserve, but the video did not show that.