I can't stop wondering why the Jericho guys did not bother to use the tank that they acquired a few episodes ago. Even if they did not have ammo for the main gun, or the machine gun, the armor alone would be a huge advantage. As long as they had diesel, they might only get 200km out of it. The New Bern guys would have done no damage with AK's and .308's
They could have used it to get close to the mortars or just drive right into New Bern. The largest weapon they (New Bern) has (that has been shown) are the mortars; and to hit a moving tank with a homemade mortar would be somewhat improbable.
So again I wonder ... why would they not use their tank?