Dominating With Hot Weapons

This was the story of a kid from Earth carrying a hot weapon across a foreign world!
Ye Xinyu was very dumbfounded!
He actually transmigrated the moment he opened his eyes!?
Wait? Why did it feel like something was wrong!?
F * ck! Who the hell broke my legs?
And what about that arsenal in his head?
What if his strength was too low to defeat him? I have a pistol, a machine gun, a sniper rifle!
What if other people could fly? Use a missile!