Good idea, but needs a lot of improvements
This was ok, but it does need a lot of work to make it worthy of front page.
1) The machine gun just felt weak. Have you ever played call of duty? Thats the machine gun effect you want to be getting, loud and furious.
2) You need blood when you kill the soldiers, it just doesn't feel like a battlefield. You could have bodies piling up up but then clear them for each level.
3) More background effects. Smoke, shells going off, other sound effects and things like that would help it feel a bit more like a battlefield.
Was a good attempt though, the graphics were nice, especially the soldier animations. Definitley do a sequel, you have a lot of potential with this one.