Why both? Because they go together like… Gordon and his crowbar! 
(That we hardly even use)
I didn’t do the full citadel_02 level, because as I said before, flying is a weakness to me. However, I can give you guys the save and somebody else (looking at you DarkEvil 
) can finish it.
Because I’m a heartless bastard like that ;).
Save for citadel_02: http://www.mediafire.com/?iec3a7f0bdaz87z