100 terminator space marines, half with thunder hammers and storm shields, the other half with storm belters, chainfists, and cyclone missile launchers. For the ground vehicle, I'd choose an warmonger class titan (which can be outfitted with two primary weapons, and six secondary weapons, essentially its a giant twenty story tall weapons platform on robotic legs) outfitted with a hell storm cannon, plasma annihilater, inferno gun, melta cannon, Vulcan mega bolter, volcano cannon, Gatling blaster, and an apocalypse missile launcher. Oh, and numerous terminators will be sporting assault cannons, plasma cannons, and multi- meltas. None of the enemy would be left alive by the end of two minutes. The Titans armament has enough firepower to wipe out the enemy in less than a minute from a mile away, and the terminators can close that distance fairly quickly to mop up what's left, but I doubt there would be anything left after the Titans done. All from warhammer 40k