The etpro-3_2_3.zip file you have requested: Modifications / ET Pro / v323 / ET Pro 3.2.3 - 3.52mb is not available. Perhaps try browsing all files for the game Wolfenstein: Enemy Territory and upload any files you want to share or are missing. This is the only information we could locate:
new: b_extendedprone (default 0, disabled) - enables accurate hitbox for proning animations, and makes the prone animation transition through crouching. b_killshot_delay (default 0, disabled) - time in milliseconds to take automatic screenshot af An updated mod hosting a slew of new features, tweaks and fixes.