Thats not actually real LC, just toying with the RPM limiter... i thought you were referring to the LC/NLS ASM hacks.
i thought he was as well. hence my original comment of "there is no 2step in that file".
I'm not 100% sure on this but based on my research it seems like Launch control uses sensors to detect any wheel slip, then interrupting your power output to try and implement a balance of both traction control and power. In other words launch control is traction control specifically for launch (taking off at a red light or a starting line at the track...)
2-step is LC but with a bit of trickery required to get it to work just right. you setup your rev limiter so that you floor it at your assigned rpm and bombs away! DROP THE CLUTCH! but as far as I understand there is a little more to the magic...
It seems like some individuals with 2-step implemented in their file, setup fueling to run a tad on the richer side. Their rev limiter acts somewhat as a cutoff for spark, Then when the spark is cutoff but fueling remains, fuel makes its way to the exhaust, where its then ignited, resulting in big pop pops! and flames!
I didn't want to go the 2step route because at the moment my muffler tip is like barely an inch recessed behind my bumper so until I adjust it by welding on another inch or two of 2.5" piping, my tip isn't actually poking out past the exterior of the rear bumper... I wanted to avoid something like this, but worse lol
https://youtu.be/81GPj-oOoY0