[@Lmpkio]
My interpretation:

Set frees himself from the choke hold at the same time that Reinhardt smashes down with his hammer and DVA opens fire.

Reinhardt rushes Vader, DVA still shooting, Set activates the runes and begins acrobatics.

Vader deals with/dodges/is hit by Reinhardt's attack, DVA still shooting, Set sends in the rubble

Set attacks, Vader dodges/is hit/whatever, DVA still shooting.