Roppen

roppen is the user account name of Dr. J. Robert Oppenheimer on the Dreamland remote server, which is accessible from the computer terminal in the interrogation room depicted in the main menu of Call of Duty:Black Ops.

Password
The roppen account uses a non-secure password, TRINITY, a reference to Oppenheimer's involvement in the development of the atomic bomb during World War II.

Mail
Typing the command MAIL opens Oppenheimer's mail account.

Files
Typing the command DIR opens Oppenheimer's home directory /home/roppen/, which contains various files. Each file is viewable by typing the command CAT followed by a filename. EXAMPLE: CAT FOOBAR.TXT

Hai1.txt - appears to be one of a series of haiku-style poems and decodes as the following using the DECODE</tt> command:

GUN IN MY RIGHT HAND</tt>

COLA IN MY LEFT</tt>

BRING ME THE MEATSACKS</tt>

Reference to killing zombies while holding a perk-a-cola. It would appear to be from Dempsey's point of view as he is the one that calls zombies "meatsacks".

Hai2.txt - appears to be one of a series of haiku-style poems and decodes as the following using the DECODE</tt> command:

UNDEAD ALL ABOUT</tt>

SURROUNDED NEED MAX AMMO</tt>

COULD USE A REVIVE</tt>

Reference to being swarmed by zombies, being out of ammo, and needing to be revived.

Hai5.txt - appears to be one of a series of haiku-style poems and decodes as the following using the DECODE</tt> command:

WENT DOWN TO THE LAKE</tt>

STUMBLED UPON A SECRET</tt>

WILL NOT SLEEP AGAIN</tt>

Possible reference to the musical easter egg in Shi no Numa.

One other file is encoded, which is Oppenheimer's reference to the Trinity atomic bomb test:

Radiance.txt - Decodes as the following using the DECODE</tt> command:

IF THE RADIANCE OF A THOUSAND SUNS</tt>

WERE TO BURST FORTH AT ONCE IN THE SKY</tt>

THAT WOULD BE LIKE THE SPLENDOR OF THE MIGHTY ONE</tt>

<tt>I AM BECOME DEATH THE DESTROYER OF WORLDS</tt>

<tt>BHAGAVAD VITA ALAMOGORDO NM 1945</tt><tt> </tt>

Trivia

 * One of the images (the one labeled engineeruntoten.pic) shows concept art for what appears to be a zombie wielding a wrench. This zombie appears in Dead Ops Arcade.