The Goliath mortar was heavily used by both the Control forces on Sepulveda 7 and, when captured, their Resistance foes. Shown below is the Control team and the Goliath mortar in 15mm scale.
We've had Resistance crew made as well for the weapon.
For those of you who might have missed it, in summer of 2010 we published a story featuring the troopers of the Control Battalions which gives some feel for what they are and how they fight. It can be read HERE.