PS But yeah, I hinted at before that the Sonic & Doom bits were inspired by something similar the Rampancy boys did in their Marathon LP. That was when they had a sync issue on No Artificial Colors, they ran with it and turned it into a bonus episode where they got sucked into Doom 1 episode 2 before finishing the map as normal.
I included something like that in the Ensurance Trap as a shout out to that, with the Doom portion using its counterpart to both Marathon Eternal & Redux, Brutal Doom Extermination day (plus Doom Eternal for similar reasons). It was specifically that mod as Doom 2's city levels are nowhere near as advanced as either EDAY or any Marathon level Some minor Doom 2 and SIGIL images were used as well for the castle & volcano sections however.