Battle of Fire Base Chimera

The Battle of Fire Base Chimera was one of the last battles during the Zerg invasion of Mar Sara and one of its most bloody. The Confederate Marine Corps defended Fire Base Chimera against a Zerg Brood (seemingly the Garm Brood, given its use of wave attacks).

Outline
At the sound of an alarm, the Confederate Marines sprinted to the Bunkers at the base's perimeter, Missile Turrets firing at distant targets (Mutalisks). Recon Patrol 09 and Command Bravo confirmed that the approaching forces did not match the Protoss profile and they were hostile (facts that had become obvious by this stage).

The Zerg employed wave tactics, at first relying on tides of Zerglings to throw themselves at the Bunkers, then adding Hydralisks to the assault. The line was holding, but the Zerg could afford such losses, given that the Bunkers could only take so much punishment. Realising their plight, at least one squad of Marines made a break for the outpost's Command Center.

The Command Center offerred no respite, the Zerg breaking in and killing all those present (except Andre Madrid, who was undergoing infestation. Any sense of triumph the Zerg may have felt (if they were capable of such a thing) was quashed with the entry of Executor Tassadar, accompanied by the Zealot Thuras, killing the Zerg present and granting Madrid a mercy killing. By this stage, both the Terran and Zerg forces had seemingly wiped each other out.