BioWare has just released a new trailer for Mass Effect 2, featuring the exploits of strategic tactician "Commander Shepard the Engineer" and his murderous robot. Much like the first game, engineer class players will rely more heavily on strategery and tech management than direct confrontation.

Lead gameplay designer Christina Norman guides us through some combat-heavy gameplay, which depicts the aforementioned android aggressor along with some cool abilities, like freezing enemies on the spot and hacking mechanized enemies. Oh, Mass Effect 2, you had us at killer 'bot.

This article was originally published on Joystiq.