This was the first complete asset I made for Firestorm. I designed and modeled it, with some work being done by Chris Redmon, then Art Lead on Firestorm. Textures also by me, the final ingame textures were later touched up by another artist on the team, too, after I took it to the state it's shown in here.
The idea is an enormous autoloading cannon bolted to a crane or excavator cabin, haphazardly put together by the Forgotten, out of old GDI and civilian equipment left behind during the first and second Tiberium wars.