Thoughts on the AC3 soundtrack

I dont know about you guys, but I hear alot of songs on this track that sound alot like songs from different games and movies. There is one song in the game that starts of alot like a song in Fallout New Vegas. Another song sounds alot like a song from Batman DK. And there are a few more that i noticed while playing. what have you guys or gals noticed while listening to it?

PS. the song Superhuman Damned is the one that sounds like the fallout song