Countdown presents Lord Havok
The team formed by Dr. Diehard in earth-8 was in direct opposition to the Metahuman Act. When the Meta Militia attacked the Zen Men school to arrest their leader, Dr. Leckter choose surrender himself to prevent any bloodbath. But this action don't prevent than most of the Zen Men ended in concentration camps, meanwhile some of their members defected for the Meta Militia.
After scape, a new complex of the Academy for Advanced Children was built in West Germany, where Dr. Diehard formed a new team of Zen Men under training. All them would die in a unexpected attack of the Meta Militia, ordened by Americommando.
In the pages of Grant Morrison's Multiversity, the Zen Men are now called the G-Men (Geno-Men, not to be confused with "Government Men"), a group of neo-humans.