400 for the main game and 100 for DLC.
Normal? No, but either was a game shipping with 1250gs
Witt Witt Witt
Read Dead is a bad video game
xbox360achievements has posted the list as well: http://www.xbox360achievements.org/g.../achievements/
Depending on how the charts break down, it's possible some non-metal songs could be difficult. One Week might be murder on Vox because of the cadence for example. Throw in that even the metal songs have a few easy instrments (vox, maybe keys, sometimes bass), and that you're playing all 5 at the same time, and you really don't now which songs are going to be the toughest. I'm guessing it will be songs with tough charts on all 5 instruments (With "Paradise by the Dashboard Lights" as possibly being the toughest overall because of the Vox chart).
<Insert request for more Boston here>
PSN: Bront20
DLC: lots+RB1+LRB+RB2+ACDC+GDRB (+ RB3)