ok..i know you may want to get to the top but..
here are your problems.
1.this is a big problem some may concider it a fatal one for your sub NO STORYLINE and if their is..make sure it's visible in the flash. Or at least keep us interested some how this could do that..but it has problem number 2.
2. too much..stuck together circals and gradients..try to make diffrent shapes..for like armor or something, practice a little more, get some tutorials.
3. Smoother animation where you can actualy seee....him put the gun under his arm and shoot. flashing to that..is ok..but it was a bit of a repetative thing as if an excuse not to animate..and just animate simple stuff well to make yourself look good.
Just keep this in mind. And good luck.