Fleisher was headhunted for 2000 AD on the basis of his work on THE SPECTRE. He was a regular contributor from around 1990-92, writing Rogue Trooper (with art by Ron Smith), Harlem Heroes (art by Steve Dillon) and Junker (art by John Ridgway).
I mention the artists because, charitably, these were the worst scripts any of these talented men have ever illustrated. There's a character in the last part of that Harlem Heroes story who delivers Fleisher's immortal line "Hey! What the hell happened to our quintuple X-rated movie?"
2000 AD has been a lot better since his absence.