For my own edification could you tell me which page this appears on? I just went through the pdf searching for all instances of the word "cube" and couldn't find the actual icon, except as it's incorporated into the Sepsitorized token. Is there a Cube 2.0 icon as well?
Page 98, Guard’s description says it’s a CC Special Skill, but it lacks that Label. This discrepancy also exists on the Wiki.
The cube 2.0 symbol is a slightly different version of the 'cube' symbol. It has a little yellow marker in the top. Functionally the same when it comes to sepsitor effects. Most Aleph units with a cube have a cube 2.0 instead. It has different effects in a campaign situation.