Captain A.C. Exeter

A.C. Exeter was the captain of GFMC Task Force Herakles, and squad leader of Force One, which was stationed to guard and repair their warship, the GFS Tyr. Although Exeter was subsequently killed when the Ing ambushed the Galactic Federation Marine Corps landing site, the captain sent a distress signal, which did not make it through the heavy magnetic interference caused by the atmosphere of Aether. Prior to dieing, the facemask was cracked open, unlike those found on other soldiers.

Exeter's second initial was revealed during a cutscene that plays after approaching the body:

"Datecycle 07.014.2 (Cosmos) Final report, GFMC Task Force Herakles. Exeter, A.C. commanding."

Logbook
"I'm beginning to think it was a real bad idea going down there. Reevs is right, that hive is just one of many. It's stupid to stir a hornet's nest, especially if you plan on sleeping under it."