The SMSS Block II in Combat

I want to develop/produce a high-quality animation of our unmanned ground vehicle in various combat scenarios, conducting various missions. I'm looking for high detail, realistic movements, good lighting and convincing environments. I will want appropriate background music, gunfire (different calibers), explosions, engine sounds and hydraulic whirring, tire sounds across gravel and sand, tinging/plinking sounds of expended brass hitting hull of vehicle, etc. Background terrain will be complex and must look realistic. The animation will be shown at major Trade Shows, so it must be top-notch.