If there's one thing here that I'll give Harmonix credit for with this, it's that I honestly never, ever in my wildest dreams would have expected to have Dawn Patrol as a piece of DLC for a video game. This was a bizarre song when it was originally released 20 years ago and is somewhat awkward to listen to today (fun fact: it was used as bg music in the opening of the Hangar 18 music video).
If you haven't heard it, it's a slow tempo song, consisting of drums, bass and a British Dave Mustaine talking about post nuclear war "life". Despite being an odd song, it works well with the album. Not so much as a playable song for a video game, though.
It's charted well enough on all it's instruments. The bass has it's moments but nothing particularly challenging or memorable. I'm sucker for a really bassy bass sound, but Dawn Patrol doesn't even feel all that satisfying despite being a song all about the bass. Yes, there are easier and duller bass charts out there, but there's nothing special about this so that bassists everywhere should be relieved that such a song is in the game. Boo.
Did I mention this song is also less than 2 minutes in length? About 1:50 to be more accurate. At best, this song is a novelty, like Thank You Boys (except totally unlike Thank You Boys). It's not empty of notes to be considered boring, or long enough to be called repetitive.
Rust In Peace is a classic album and is arguably the best DLC available for the game. This song seems completely out of place here. I distinctly remember that moment when I first downloaded the album to play, selecting the album setlist from my RB2 library... only for it to grey out Guitar as an option. Yes, that could have been the fault of Rock Band 2, but that was a pretty frustratingly awkward moment.
This is full priced DLC. IIRC if you buy the RIP album pack this essentially comes free, but would you ever want to play it more than once? I'll stop now. This is way more attention than this DLC probably deserves ;)