Yes, of course he had an army, and want to copy an army of great power for afterlife.

He built a tomb, and in it put over 8000 soldiers, 130 chariots, 530 horses and 150 cavolry horses, all made of terracotta, he named this his terracotta army. to protect him in his afterlife

no, we named it the Terracotta Army, Shi Huangdi didn't.

Just because he had an army of men made out of mud, doesn't mean he had a army of men. Besides how would you know the correct answer? Unless you're immortal and was back in China just before he was born undercover. And no, I have not been watching to many movies like THE MUMMY