There's a lot to this time drop so far past 50s.

Early ground-pounding allows an early landing on the railing to start climbing, which was a bit slow here.

The first DJ is hopped diagonally onto the railing to shorten the run-up and a shorter line-up. By the end this will have to be an immediate run-up and jump with no line-up time apart from during the hop. The second DJ requires a shorter run-up as well, but my run-up here was longer like in my previous run because of my Firefly shot placing the broken concrete in a bad position.

Jumping across the support beams lets you land on the stone wall instead of hanging off of it and saving a climb.

The guards aren't detonated because they appear fairly consistent in their positioning (or at least no less consistent than ragdolling them with explosives), their positioning isn't masked by smoke to get around them easily, and your agent isn't slowed down on the ground because of using weapons.

There's a couple more time-saving techniques that didn't appear in this run because they weren't consistent/accidental: -The chunks of concrete can be picked up instantly sometimes, saving the animation time. This might be because it's cluttered together but I'm not sure (it's only happened to me twice). -When landing the second DJ onto the support beam, if the DJ is performed at the apex of the first jump very precisely, you can land on the beam, saving another climb up. The problem is if you don't see it coming you'll run off and kill your run (the one time it happened to me I ran off), but if you do you only have to adjust your momentum to prevent jumping past the opposing support beam.

With everything here I can see sub-47 happening, and even sub-46, but it's going to be brutal. I'd put this as easily the most technical Time Trial on the list.

(Xbox 360 disc played on Xbox One S)