Each thursday, starting next week (16th february), matchmaking will be open from 17 to 23 (UTC) to test yourself against hordes of enemies! (well, we hope so, spread the word anyway). We're sending keys so you can activate 5MR on steam, once activated you can start your training with local matches or with steam friends online, and be prepared when the Day of Rage comes. If you still haven't subscribed to the beta, what are you waiting for?
http://www.indomitusgames.com/5-minutes-rage