All points for effort.
I must say, this is not what I'd call a good tribute.
However, I can see that you put in a decent amount of work into this and obviously haven't been using Flash long at all.
And;
-Graphics- The graphics weren't all that crash hot.
-Style- The madness style is the madness style. It's just plain awesome.
However, your animation and drawing techniques could use work.
-Sound- Well, the music didn't really suit your movie. But you had your gun sounds synced up nicely.
-Violence- Yes, there WAS violence, but it was rather simple and 'not violent enough'
Try having people vomit blood or try and crawl to safety after being shot (leaving a trail of blood)- Then get shot! Yay!
-Interactivity- THERE WASN'T EVEN A PLAY BUTTON! Play buttons increase overall awesomeness by over 20%!
-Humour- Well, it was funny in the sense that it wasn't funny at all.
-Overall- 5. 5 (thats 5 out of 10) for effort. Keep practicing, and that 5 could be a 7.
If you are on the Madnesscombat forums, look me up (St00gE) and I can help you a bit with your animation if you'd like. I know a little about what I do.