Warhammer 40: Starting as a Rogue Trader

Gao Yi found himself in the world of Warhammer and even became a wandering trader.
He can bring technology and military units from other games into the 40k world.
Years later, a large number of incredible reports were delivered to the desks of the Imperial Ministry of the Interior and the Ministry of Military Affairs.
"You said they're better at running explosive units than the Ultramarines? You said their Forge World production is higher than Mars'? They have all sorts of sacred STCs? They've also mastered long-range navigation technology that doesn't require the Warp?"
"Well, in the name of the great Divine Emperor, the Human Empire, and Holy Terra, I grant the Golden Merchant Rogue Gao Yi and his planet special tax exemption status, and grant him the title of Sun Lord.
"What did you say? You're going to report to the Inquisition and the Adeptus Mechanicus that Lord Gauguin possesses illegal, heretical technology and has tampered with gene-seed to form his own Astartes? I advise you to stay out of their business! The Dynasty has no secrets!"

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