But the beef's there - he's crazy. Or at least, he's going crazy. 

I'm actually trying a lot of things with Seth and that personality section, like using the weird kind of prose you'd see on the TYPE-MOON wiki, for the purpose of making him not just a character, but also a sort of meta-commentary on how people try so hard to make 'unique' and 'complex' characters these days. But of course, I couldn't settle for making a shallow character while I'm at it, so perhaps I can't say that this is completely true. Perhaps I tried too hard myself. Though your observation is fair - if you require it, I'll whittle down the personality. To be honest, not all of it is there, since he actually dabbles in politics, in a way. He has connections in the Zenterr military, men and women who've looked past simple sentiments, and you can't exactly call him a simple, mindless soldier. But at the same time he's not not manipulable, with the state of mind he's at.

As for Altair, it's the halberd seen in the picture. I wanted to include a name, but didn't know how to put it alongside a general classification of the weapon, sorry.