OMAC

The OMACs (Omni Mind and Community) are cyborgs who take over human bodies via a nanotechnology virus in order to assassinate any and all metahumans. The virus was created from Brainiac-13-derived nanotechnology acquired by the U.S. Department of Defense and LexCorp, which was then secretly introduced into general vaccine supplies.

Controlled by the Brother MK I satellite, Brother Eye, during the Infinit Crisis, the OMACs were ordered to attack and kill all the metahumans on Earth. A group superhero effort stopped the attack, reducing the number of OMACs to roughly 200,000 by disabling the majority of them with an EMP blast.

After this, Brother Eye initiated the final protocol, "Truth and Justice," by having all the remaining OMACs invade and attack Themyscira to wipe out the Amazons in retalition for Wonder Woman killing Maxwell Lord.

When Brother Eye was defeated, the OMACs were rendered inert; freeing their hosts.

Involvement
Having survived by uploading itself into a new core, Brother Eye released a new OMAC virus and began assimilating the area around the Gotham City Knightsdome. However, it was stopped by a group of new heroes on instruction from Batman.

Brother Eye and the OMACs have since become minions for Brainiac's invasion.

Trivia

 * The OMACs first appeared in The OMAC Project #1 (June 2005).
 * During the Infinite Crisis, the OMACs numbered at 1,373,462.