The b45goliath.rar file you have requested: Addons / Vehicles / Sdkfz 302 Goliath - 614.49kb is not available. Perhaps try browsing all files for the game Operation Flashpoint and upload any files you want to share or are missing. This is the only information we could locate:
The Goliath was a ww2 german remote-controlled small carriage, which was able to transport explosives to a target. You can R/C it via tactical map and let the explosive charge detonate by using the action menu.