Phobos Incident is going to be a full-fledged campaign for Alien Swarm. It can be considered as a re-imagining or an alternate future for the base that was the place of action in the game Doom. Now four marines are sent to investigate a distress signal in a place that could be Phobos moon base 17 years after. Some things have changed, some have remained.
This is a short, violent teaser for Phobos Incident. Just to get your juices flowing. Fought it with quite a few hours thanks to Pinnacle screwing up the pieces and titles and crashing on me, but I triumphed!
Anyway, this demonstrates some of the more finished (than others) areas from the first mission I've been working on. Hope you like it.
It's also available in Youtube: