If you wish I can make the terrain for the center part. I can terrain, I've made a cinematic and several smaller terrains before. I just need to know what kind of setting it's in, farmland, cityscape, village, modern, forest... etc. And what tank model to use. I can add smoke effects, a commander looking from the top (depending on the model ofc) and I can add the scope fade filter, so you can see what it would look like. You'd just need to draw the flag, and the rills of the inside of the cannon.
Just ask, I'm here =)