I found this version on web, but today the link is offline.
I was thinking while download it that was a version with final level(Fifth level), but unhappily i was wrong.

Modifications on this version:

1-Went corrected some textures that were missing on final released.
2-Some soldiers were changed on the level 4.
3-It was modified the end of the level that would be the level 5.

Notes:

1-The levels 1 to 3 are the same of the final released that is on RTCW's website maps reviews.
2-I believe that this version is for collectors and curious.
3-Link to download for this version(16.11MB): http://www.megaupload.com/?d=K6ZMGWIE

Thanks!

Зеркала:
http://rapidshare.com/files/124174928/Hddl.rar и http://ifolder.ru/7066732

Thanx, brother!

The old link was broken and i reupload the file on another link above.
New link to download:
http://returntocastlewolfenstein.filefr ... v11;115437
Another link: https://gamebanana.com/mods/144425

Walkthrough videos first released:
Level1:
Level2:
Level3:
Level4:
Version 1.1 - Level 4:

General Red has recorded a playthrough for HDDL! You can watch it on my website: http://tinyurl.com/o88tthm

Tatiana has uploaded a playthrough for HDDL! You can watch it on my website here: https://goo.gl/41gdzw

Yo$hik has uploaded a playthrough for HDDL in "extreme quality"! You can watch it on my website here: https://goo.gl/BuK4jl

New link to download: https://www.gamefront.com/games/return- ... inien-v1-1