Abhorrent Aliens

You are members of the crew of the USCSS Montero, returning from a supply mission to the outer colonies. You receive an urgent message from Weyland-Yutani, ordering you to divert to a set of coordinates and undertake a high priority mission. Your contract clearly states that you cannot ignore such an order,  on penalty of total forfeiture of shares. Therefore, you begrudgingly change course. The crew consists of the Captain, two engineers, two science officers, and a synthetic. Also on board are four colonial marines, who are hitching a ride back to Earth after a bug hunt on the colony world. Together you are a strong crew, but where you’re going, it might not be enough.