What if you had certain challenges that if you completed, it would go in your post mortem? eg.
-------General-------
36 brave souls have ventured in to phobos.
34 were killed.
1 was killed by somthing unknown.
And 1 couldn't handle the stress and commited a stupid suicide.
He was never chicken enough to resort to a health pack.
Only 5 others have managed to do this.
He used a thermonuclear bomb, and lived!
He is the first soul who has managed to do this.
etc.
Suggestions for challenges:
The two up there ^
Staying in agressive for over 1000 turns (or somthing larger like 2000)
Not harming a single human, but killing all hellspawn.
Never firing a (Insert gun here), despite having it for over 500 turns.
Killing the CD (Or JC!) with a melee weapon (that is, using lotsa plasma then melee, of course you can't beat either using ONLY melee.)
Killing the CD (Or JC!) using no plasma.
Doing both of the above suggestions (GIVE THE GUY A PRIZE PEOPLE!)