File Comment TBSP Ver. 2.2 for DOOM. TBSP is a fast, accurate node builder that finishes levels for DOOM that have been created using DEU, WADED, or other editors. TBSP is 4-6 times faster than BSP 1.2x so less time is spent building nodes and more time is spent beta-testing. Documentation: tbsp22.txt. Last revision date in archive: 09-18-94.