Who actually made B4NM?

Big Johnson/BOB BOBOS - Project leader:

MAP07, MAP11, MAP21, MAP24, MAP25, MAP27, MAP28, MAP30 (second and third form)
Helped out with almost every other map for balance, ACS and quality control

Stargazer - Co-leader:

MAP02, MAP09, MAP10, MAP20, MAP26, MAP32, MAP70
Made most of the new non-boss enemies for the wad and helped with a few maps for ACS and quality control

Ogre:

MAP01, MAP03, MAP08, MAP17, MAP23, MAP29
Did thorough cleaning, bug-testing and fixing of the wad.

AverageSpaghetti:

MAP06, MAP10, MAP12, MAP16, MAP18, MAP22

BSC:
MAP05, MAP13, MAP69

OneTrueCyber:

MAP31

Kyle Hudak:

MAP04

Nambenis :

MAP15, MAP19, MAP29, RALPHIS, MAP30 (first form)
Faggot threatened to leak the wad because we wanted him kicked lol

Maize:

MAP14, MAP29

CakeDoomer:

Voice acting