Wen Qinxi was normally all for gun control and anti-gun violence in the real world which is why he was never a god player when it came to pubg but going through these past two worlds, he had to adapt. Plus, when it came to Lin Lin he had to do whatever it takes to protect him. If anything happened to that kid, he might consider ending it all and re-start the world.
This might seem pretty selfish but the nerd had sacrificed a lot so yes, he deserved one selfish thing. So this papa bear managed to get into the armoury after using Qie Xieling as a diversion. He wanted the boy to throw a fake tantrum or something to draw the bodyguards' attention but who would have expected Qie Xieling to take off all his clothes and run around the property naked.