Here are a couple of articles I found on Jason Everman,who was kicked out of Nirvana and Soundgarden then joined the army.
http://www.nytimes.com/2013/07/02/magazine/evermans-war.html?pagewanted=all&_r=0
Jason Everman: Guitarist kicked out of Nirvana and Soundgarden became a war hero | Mail Online
http://www.nytimes.com/2013/07/02/magazine/evermans-war.html?pagewanted=all&_r=0
Jason Everman: Guitarist kicked out of Nirvana and Soundgarden became a war hero | Mail Online