Been listening to these guys since the mid-90's. They were kinda in with some bands such as Cynic and Bolt Thrower in the early to mid 90's, even though they were a "Christian" group. They broke up in 1994/95, only to reconvene sometime in 2005. They released
Gabriel in 2009 and just came out with their latest,
Transhuman, a few weeks ago; since they've come back, the Christian themes are almost completely absent from their lyrics, which is interesting. I'll link to a few different songs, as their style has progressed:
"Idols Of Ignorance" (1990). Off probably their most technical album (and still my favorite),
Sanity Obscure, this song is amazing, especially the riff at 2:24. If Metal Militia were a real thing, then that riff would be its marching song:
https://grooveshark.com/#/s/Idols+Of+Ignornace/2qdPe7?src=5"Focused Lethality" (2009). Off of
Gabriel, more just straight-up thrash.
https://grooveshark.com/#/s/Focused+Lethality/3pxwfG?src=5"G.U.T." (2011). Off of
Transhuman. Definitely a bit of a departure as the vocalist is doing some real singing, and there is less straight-up thrash. Still really good, and it's part of a concept album on the intersection of humanity and technology/science.
https://www.youtube.com/watch?v=x3zBY4ObGvM&feature=player_embedded