rough concept for "old mans war" synopsis: Old Man's War Military SF book cover. This is series of books in which older people (men and women) can exchange their old bodies for enhanced young bodies. The catch, they are then obligated to two years fighting an incredible dangerous war on far off planets. And while they are now strong and young, they are also green. Show a male lead fighting an alien creature. You can show other troops as well, remember there are both male ad female infantrymen. They wear thin self-healing battle armor. It is described as a leotard but feel free to cheat that a bit to make it look more interesting. They also have belts and packs with hightech versions of what you would expect a soldier t have — knifes, tents, etc. They are fighting the Consu, a bug-like alien. They walk on two legs, have arms, but they also have large slicing, curved, razors coming our from above their arms. This will give you a lot of background. http://en.wikipedia.