Wow...
Very well done, and, for what it's worth, fairly original. Any game has rewards for kill streaks and whatnot, so honestly those staples can't be said to have been from one game (I'm looking at you, Mr. Hitman1993). Honestly, there is only so much content to put into games, and this was, frankly, well done. This also creates an excellent base for sequels, such as the one mentioned in the "About Raze" menu. Of course, it could be a bit smoother, but hey, it's just a Flash game. Next game, I'd love to see more complex maps with team based spawn zones rather than random spawning, and larger maps, of course.
Also, I recently noticed you plan to have the option for custom weapons. Holy crap! Thank you!