AC/DC: Live Rock Band Track Pack is a great game, but limited diversity of characters makes this game unappealing.
The quality of audio, i have to say, is amazing for live performances and you will find this game is very accurate and clean with sound, as there is a calibration system which allows you to set the lag time between what you see and what you hear, which makes the notes and sound sync right in with you strumming, drumming and singing. Very smart idea, harmonix.
The instruments are the same as any other rock band games.
With your Guitar, you would find this game to be challenging, because AC/DC's guitar player is very impressive and you will have a hard time keeping up with his sound sometimes.
With your Drums, you would be fine, as AC/DC's drum beats are very simple and easy, so practically anyone could play drums for this game.
The tricky and fast drum beats are a tad harder to play than normal beats, so you'll have to practice a bit more for those songs.
With your Microphone, The singing is very straightforward, for in most of the songs, the chorus is just the one word repeating itself. if you do decide to do vocals on a harder level, you will find keeping along with the tone very difficult, as the lyrics are said very fast in most songs' verses.
With your Bass Guitar, You will find this game very easy, as the bass is not hard at all, just fast strumming. the changing of notes with the bass guitar is very straightforward, and will only require a small amount of skill to master the bass in this game.
Overall, I Think this game is a winner for fans of the legendary band, and the whole family can play this game, as there are difficulties that suit everybody.