Player: Crusador560
wad: Sunder2512.wad
Map: 20
Skill: 4
Category: UV-Max
Time: 61:52.34
Engine: DSDA-Doom v0.28.2 cl9

Comments:

My last run of this map on the outdated version was alot better time-wise, especially at the final fight since I was very efficient with cells, might've fired too much bfg in this run during the first phase. 

Sub50 should probably be doable on this map with good infighting going on in the big open city fight, there's also a way to trigger the city fight before going in the white room arena with the switches by pressing the switch after picking up the bfg with an avj, then gotta sr50 to press the switch that activates the big city fight mid-air.