Hate to sound like a n00b, but other than Thane to the Throne, Mech, Casting the Stones and Nail Spiked bat, I haven't heard any of the *older stuff. I don't know what Macbeth gets such a bad rep, I couldn't stop listening to it when I first heard it. I used to listen to that whole CD 2 or 3 times a day. So when Mechanized Warfare came out, I bought it.
Cold is the Blade is the song that really hooked me on to Warfare. I'm a sucker for the warrior type metal songs.
And Achilles from Casting the Stones is the best 2:45 seconds of music I have ever heard!
*Oh yeah, I know that it IS the old stuff, but you know what I meant