I'm an avid Command and Conquer fan, and am watching something like 60-70 promising mods for C&C or related games! Besides being a fan, I am the head Particle Artist for Red Alert 3 Paradox, and I occasionally make concept art for kicks and giggles. If you want to reach me, just leave a comment or send a PM my way, and I'll be happy to respond.
First off is the Purifier: a large flamethrower and solid-state napalm cannon - wielding behemoth designed to tear through defensive fortifications.
Next is the Nod Support heavy artillery - my boss asked for a "beast-look" to the original design and I think this hit it. Weapons description in the image!