May 20, 2010
- 19:1919:19, May 20, 2010 diff hist −570 Single Occupant Exoatmospheric Insertion Vehicle →Trivia
May 14, 2010
- 20:4520:45, May 14, 2010 diff hist −394 Human →Technology
April 28, 2008
- 17:5117:51, April 28, 2008 diff hist +10 UNSC Navy →Technology
January 30, 2008
- 21:5921:59, January 30, 2008 diff hist −12 Sangheili →Rank Structure