I have mixed feelings about this one.
First of all- the game looks and sounds great, and I admire the ambition of making a full multiplayer game for a game jam. There is obviously a lot of creativity and effort here.
But here's the deal- the gameplay completely didn't land for me. Take shooting. Aiming slows you down to a crawl and by the time you shoot your target isn't there anymore. If you manage to shoot in a direction of another guy the bullets are slow enough to easily dodge. If you get hit, you get barely damaged. Since combat is so difficult you just keep running around and collecting green dudes, and because there are no time, or point limited rounds the one highest in the leaderboard is the same as the one who's the longest in the game (which, ok, in the olden days, when there were TF2 servers with 24h time limit that was also the case).
The way I see it, the game needs to be either faster or slower :)