We played it at the practice, and I liked it. However, it seemed like the gametype revolved around getting lucky and hitting someone in the back. There wasn't much stealth to it. If you missed your "assassination", you just kept hitting at them until you got lucky and they messed up and exposed their back to you.
Suggestion: Make the game more stealthy.
Overall, I liked it. Fun map and gametype (if played right).
~Sin