Me? Well I'm ErastusMercy, the lead voxel artist on the popular Tiberian Sun mod, Twisted Insurrection. If you don't know what a voxel is then I'll put it this way, I make the vehicles. :P In addition to my roles on TI, I've also done Infantry cameo's (The unit portrait you see when purchasing/selecting a particular unit.) for the C&C3 mods Tiberium Wars Advanced and The Forgotten Mod.
So here is a collection of cameos I've done for Stygs' C&C3 mod, Tiberium Wars Advanced Moddb.com
Featured here by faction:
Nod: Militant, Rocket Militant, Commando, Scorpion Tank (Shop of Golan's model to fit in with the vanilla vehicle cameos.)
GDI: Missile Squad, Sniper/Alt Sniper and Pilot.
Still the best cameos for any CnC3 mod ever :)