From what I understand, the bloodgulch bitmap, scenario structure bsp, and the bsp itself is failing to load? could anyone provide a reason for this?

02.21.18 16:03:33 sapien pc 01.00.00.0609 ----------------------------------------------
02.21.18 16:03:33 reference function: _write_to_error_file
02.21.18 16:03:33 reference address: 401b13
02.21.18 16:03:33 Couldn't read map file './sapienbeta.map'
02.21.18 16:03:33 CreateDevice succeeded with refresh rate = 0
02.21.18 16:03:34 Sound card doesn't meet minimum hardware requirements. Disabling hardware option.
02.21.18 16:03:34 Increasing sound decompression buffer size to 1048576 bytes
02.21.18 16:03:35 file_read('tags\levels\test\bloodgulch\bloodgulch.bitmap') error 0x00000026 'Reached the end of the file. '
02.21.18 16:03:35 couldn't read #108 bytes from offset #64 in local tag 'tags\levels\test\bloodgulch\bloodgulch.bitmap'
02.21.18 16:03:35 couldn't read elements for bitmap block
02.21.18 16:03:35 failed to load bitmap tag 'levels\test\bloodgulch\bloodgulch'
02.21.18 16:03:35 failed to load scenario_structure_bsp tag 'levels\test\bloodgulch\bloodgulch'
02.21.18 16:03:35 failed to load structure bsp 'levels\test\bloodgulch\bloodgulch'

sounds like you are attempting to open a modded bloodgulch map and not the original. Some of the tag references for the scenario tag are missing or corrupt. I always make a clean backup of my tags and global files to copy them back into their respective directories then try and open the sceanrio tag

Actually, his "levels\test\bloodgulch\bloodgulch.bitmap" tag is corrupt. Sapien couldn't even read the 108 byte body after the 64 byte header. The tag is literally garbo.

I think I know what happend. You downloaded a older version from HEK+. I did the same, and the older version always corrupts the bitmap file. Therefore you get the error. Just use the new HEK+ from 2006 and extract the bitmap tag again.

No, don't use hek+, use refinery. It's the most accurate tag ripper. Hek+ is garbo.