Roger Opperman

8 messages, 1990–1993, in message-number order.

1990

• TDR #1746 · Roger Opperman · 10 November 1990
• GR is low recoil #1867 · Roger Opperman · 28 November 1990

1991

• Computer Striker #2395 · Roger Opperman · 31 May 1991
• TML nightly: Msgs 2467-2480 V21#14 #2482 · Roger Opperman · 28 June 1991

1992

• TCS Rules #3784 · Roger Opperman · 24 February 1992
• High Guard #3903 · Roger Opperman · 29 March 1992 · 1 reply
• Plagiarism Accusation #4632 · Roger Opperman · 14 September 1992

1993

• Tracked Vehicles #6125 · Roger Opperman · 5 October 1993