I kinda wish that there was a way to save Ha'rar... Also, can you leave the Fighter in front of that terminal alone, or will he attack you regardless? Can't remember exactly how that fight started for me.
All that stuff about the S'pht being selfish assholes who put Earth in danger seems like exaggeration or outright lies on Tycho's part--it's not like the original hasn't tried to mess with our heads before.
Looking at that garbaged Tycho terminal, I can make out "the enforcers will be vulnerable to the switches", "it is a great struggle, a horrible [something]", "violence", "[re]animation ended", and "Marathon". The rest seems too fragmented to decipher.