As long as you die, you are invincible, but in 40K

As a traveler who travels to the Warhammer 40k universe with high-dimensional information, can you become invincible as long as you die in a reasonable way?
Zhang Ge looked at the laser gun in his hand and asked his companion the name of the planet. After getting the answer of Alert Star, he said: There has never been such a wonderful start.
As a leader of the Imperial Army, isn't it easy to die in a battle of this level? Basically, you don't have to do anything, just stay in the trenches, and the enemy will let you die in a creative way.
However, when he casually touched the laser gun, its machine soul trembled violently with joy, and seized the opportunity to stick its head out of the trench and killed a dozen pagans. A shell slammed into the trench, and shrapnel and shock waves swept across the entire platoon's position, killing thirty or forty friendly soldiers except Zhang Ge at one time, but just avoiding him.
He realized that things were not as simple as they seemed.