KCR: Aggressor Six (novel, scifi)

Aggressor Six is an interesting twist on "know your enemy" novel on a sci-fi stage when the humans encountered the "waisters"... aliens that seem to bent on extermination of human species. Their technology is centuries ahead of the humans. Humans convened "Aggressor Six", a group of humans ordered to learn, act, speak, and ultimately, think like the Waisters, in order to give humans an edge in combat... if such a thing is possible. As colony after colony are exterminated, and the waisters are approaching the Sol System (the scouts were destroyed or driven off at TREMENDOUS casualties), will Aggressor Six find enough enough about the aliens to save humanity?

While the theme is hardly new, the execution is quite good, as this goes into the concept of war, on demonstration of superiority, and what constitutes sanity, and stubbornness. There's a surprising amount of actual science behind the sci-fi narrative, combined with enough action to satisfy those with shorter attention spans.

The book's old, and I encountered this in a used bookstore, but it's very good read. This is Will MacCarthy's first novel (dated 1996!)