- Megadeth
- Dave Mustaine – rhythm guitar, lead guitar, lead vocals
- Marty Friedman – lead guitar on all tracks except Dawn Patrol
- Dave Ellefson – bass, backing vocals
- Nick Menza – drums, backing vocals
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- Production
- Produced by Dave Mustaine and Mike Clink
- Recording and engineering by Micajah Ryan and Mike Clink
- Assistant Recording Engineering by Andy Udoff
- Mixed by Max Norman
- Additional demo recording by Chris Poland
- Artwork and cover by Ed Repka
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- 2004 Remix and Remaster
- Produced by Dave Mustaine
- Mixed by Ralph Patlan and Dave Mustaine
- Engineered by Ralph Patlan with Lance Dean
- Edited by Lance Dean with Scott "Sarge" Harrison
- Mastered by Tom Baker
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