Mass Effect: To the Last Man/Trapped

The SSV Troy exits into a solar system from a mass relay jump. It was her first mission, her first time out of Alliance space, her maiden voyage. Twelve armed and armored soldiers waited in the shuttle bay, entering and departing in the three docked Kodiak shuttles as the ship entered the planet's atmosphere. Four of the Alliance troops were N7 rated, and they were a team like no other in the human military. They were the Omega Squad.

The objective was clear: investigate an anomaly on a planet in the Attican Traverse. Rules of engagement: "Everyone is hostile. No exceptions."

(much more to be added)