Nice, but too remniscent of Battlefield.
I mean, to start, the title. DON'T call it "My Battlefield". Just about every Flash called "Madness: something" gets blammed because people immediately see it as a ripoff, so if you're going to start a series called "My Battlefield" you're going to take a lot of heat from reviewers and voters.
Next, try bringing in changes to the concept for the same reasons. Try maybe a background that pans to the side while sticks run in shooting each other, or maybe it should slowly lower or rise. Or instead of a generic, Worms-like platform background, make something different like a crowded street, or an appartment building, hotel, movie theatre, hospital, whatever. The sky's the limit.
Lastly, make it longer, or people will compare it to Battlefield and say it comes up short. Your animation style and phsyics are VERY nice, in my opinion, the movement of the falling sticks looks pretty realistic. The blood effects could be a little better. Problem is, past the part where the stick came in and had a conversation with the author, all the pace and excitement went out the window.