Board Thread:Warhammer 40k General Discussion/@comment-4851119-20140323173912/@comment-4851119-20140416131859

98.81.158.208 wrote: I don't believe the Imperium has transforming mecha. Maybe not, but they do have humongous mecha which can annihilate cities (read: Warlord Battle Titan), the biggest of which carry continent-levelling clusterf*** weapons (read: Imperator Titan with a Doomstrike Missile Launcher).

Also, Starcraft space weapon yields are inferior. A Battlecruiser's Yamato Cannon is barely equivalent to a small laser lance you might find on an Imperial civvie ship. Even Star Wars has higher weapon yields than that on its warships...

Infantry-wise, Terran Marines have the firepower to kill Guardsmen, Skitaari, Sororitas or even Astartes if they get lucky but their armour is useless against almost anything the Imperium has on the ground. Vehicles are inferior and will be shredded.