Trax steps into the doorway and is about to fire when Jex whips past him in a blur of movement, heading for the cannon on the left. Redirecting, Trax fires at one of the ceiling cannons, but before the bolt even hits, Jex has stabbed his vibroblade through the power converter on his target, which explodes in a cloud of smoke. Trax scores a hit on his cannon, but doesn't pierce the armour.
Jex doesn't even slow down, but continues to move with incredible speed. Before the first cannon has even started exploding, Jex takes one then two steps up onto the chassis and launches himself into the air. His vibroblade stabs into the right ceiling cannon, piercing the main chassis and targeting computer. The cannon starts to twitch violently as blue lightning dances over the surface of the cannon.
Trax takes his second shot at the cannon, but again does not pierce the armour.
Still in midair, Jex pushes off the wall with one foot, takes a large stride on the floor with the other foot, and extends into a leap at the last cannon, his vibroblade held in both hands. He sails through the air, putting all his weight behind a powerful slash that all but cleaves the remaining cannon in two. Jex follows through as he falls, spinning the blade to a safe position behind his back as he hands in a crouch, with one hand on the floor to help stabilize him.
The corridor is filled with smoke and flames, and one cannon continues to twitch as lightning dances all over it. Beyond that, all is quiet.
Jex has done all this in the time it took Trax to fire two shots.