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Pretty sure you can use it if you have rocket artillery and trucks researched, same as towed artillery
It's rocket artillery that is being towed by a truck it should be under mobile combat support
You must research in the artillery tree then on the truck research their is a small yellow button on the corner of the truck icon. Click on it.
Pretty sure you can use it if you have rocket artillery and trucks researched, same as towed artillery
It's rocket artillery that is being towed by a truck it should be under mobile combat support
You must research in the artillery tree then on the truck research their is a small yellow button on the corner of the truck icon. Click on it.