As of november 2014, an actual dead game/abandonware/failed beta/whatever.
The devs are no longer associated with the project, and both they and their publisher no longer have any kind of web presence. There's no support whatsoever. If something breaks, new hacks appear, someone's griefing - anything - you're simply on your own. This sometimes leads to sad things like how it's no longer possible to recover your account if you lose or forget your password, and the old hawken forums getting closed down without a word. There's about 0% chance that the game will see any further patches, additions, or updates.
Hawken has a long history, but at this rate, not only will the game cease to exist, but all memories of it will be lost. For instance, did you know that at one point, the devs and the internet at large were convinced that hawken would rival League of Legends' playerbase? The game was so hyped, they were gonna do a TV series, a card game, a movie, comic books, toys, and a youtube exclusive show. Only the card game actually made it, and it's allegedly more balanced than hawken itself.
RIP, hawken, 2011-2015. Never left beta.
While you can still play this game, know that the servers could go offline at any time, and any money you put into the game won't actually change anything, feed any developers, or even lead to new content releases. Thus, for obvious reasons, it's not recommended that you purchase MC for any reason.
tl;dr hawken could have been great, but it's dead. Play while it's still up if you feel like it.