"220"^^ . . "22"^^ . . "Cost N/A Upgrades to N/A Required technologies N/A Required resources N/A Other attributes N/A The following units can be upgraded to Mobile SAMs: \n* SAM Infantry"@en . . "2"^^ . "Cost N/A Upgrades to N/A Required technologies N/A Required resources N/A Other attributes N/A The following units can be upgraded to Mobile SAMs: \n* SAM Infantry"@en . . "Beyond the Sword"@en . "*Can intercept aircraft \n*+50% vs. Helicopter Units"@en . . "Mobile SAM"@en . "Mobile SAM (Civ4)"@en . "Gunpowder Unit"@en . .