Roaming the universe, all thanks to your many dark skills!

Of course Rosen knew why there were so many chairs below, and he even knew what was on the top of the castle, but he couldn't tell Diana.

However, he would never watch the people of Feld die from poison gas bombs, so he decided to take action to stop it from happening.

When Rosen dodged several waves of patrolling soldiers and reached the top floor, he saw several German artillerymen working hard to adjust the direction of a cannon of astonishing caliber. Next to them were several boxes with skull marks painted on them, which were most likely filled with poison gas shells.

"Who are you? What do you do?" someone nearby asked.

"I wanted to find a toilet, but I got lost. I'll leave right away." Rosen said perfunctorily while pretending to leave, but secretly launched a mental hammer at him.

But I was thinking in my heart that I should learn another foreign language, otherwise I would be easily exposed when I sneak in.

"puff."

The German soldier's eyes suddenly turned blood red, blood gushed out of his mouth and nose, and he fell to the ground, without a sound.

Since he had already started, Rosen might as well go all the way.

He glanced at the soldiers on guard around him, and when he blasted a mental hammer at the officer-like man, he already had the bow in his hand.

Draw the bow, aim and release.

Boom boom boom boom…

The bowstrings sounded and a rain of arrows shot out.

A dozen soldiers who were on guard with guns around were pierced by the split triangular arrows before they could react.

The invasiveness and lethality of the triangular arrow are not weak. Even if it is only 3/4 of its power, it is enough to be fatal to ordinary people.

If you happen to trigger the 60% chance of double damage, you will basically die if you are hit by the arrow.

The artillerymen were horrified when they saw this and wanted to resist but they had no weapons in their hands. Some of them took a deep breath and wanted to shout to warn people.

Rosen was prepared.

The bowstrings sounded frequently and the arrows came like rain.

A group of artillerymen fell to the ground in an instant, blood gushed out, dyeing the roof blood red.

"Kill a German artilleryman, merit +10."

……

Rosen looked around and breathed a sigh of relief after making sure there were no more survivors. He then rushed to the cannon in two steps and began to adjust the direction of the muzzle and the shooting parameters.

Thanks to the LV6 basic long-range combat and the LV2 artillery expertise given by Lao Tietou in the previous world, Rosen was able to tinker with the cannon quite well even though it was his first time touching it.

Rosen had previously killed a team of Allied patrolmen, and from the captured intelligence he learned that the Allies were withdrawing troops to a nearby military camp.

Knowing the plot, it was not difficult for Rosen to guess that it was the place where Ludendorff made and stored poison gas bombs.

By observing through the gun scope and checking the map, Rosen quickly determined its specific location and aimed the cannon in that direction.

Rosen opened a box with a skull mark on it and saw a huge poison gas bomb.

Fortunately, his current strength is extraordinary, otherwise it would be extremely difficult to complete the loading by himself.

I wonder how Diana is doing now?! Rosen glanced at the lights in the castle that were lit up as night fell, and he felt a little worried.

Just when I was about to look for Diana, a crisp gunshot suddenly rang out in the castle.

Rosen secretly cried out in dismay.

"Ah! Someone is trying to assassinate General Ludendorff. Catch her quickly."

"Bang bang bang."

"Enemy attack!"

……

Suddenly, there was chaos in the castle. The sound of gunfire became very dense, mixed with men's curses and women's screams.

"She really did it." Rosen shook his head and sighed, but he didn't blame Diana. He just pulled the fuse.

"boom."

With a deafening roar, the poison gas bomb whizzed out and hit the military camp built in the distant woods.

In an instant, the projectile shattered and orange-brown poison gas began to spread wildly. All the Allied soldiers nearby were poisoned and fell to the ground, dying in extremely miserable ways.

But the terrible attack did not stop there. Accompanied by sharp and piercing whistling sounds, poison gas shells bombarded various parts of the military camp, and the poison gas began to spread wildly.

Even if the Allied soldiers wore gas masks, they were still unable to stop the erosion of the poison gas. Instead, they died faster and more miserably as the masks were quickly corroded.

This was exactly the purpose of Dr. Maru producing this batch of poison gas, but unfortunately he shot himself in the foot because of the appearance of Rosen.

At this time, Rosen's system prompts were constantly refreshing, and his merit value was growing wildly.

"Basic long-range combat level has been upgraded to LV7. You can skillfully use various long-range weapons and hit nine out of ten targets within 480 meters."

"Artillery expertise level increased to LV3. You can lock onto targets faster when aiming. The damage radius of the shells when they land is increased by 5%."

The people in the castle were panicking because of Diana's sudden attack on Ludendorff, but they still heard the loud cannon fire, which made them even more panicked.

Dr. Maru, who knew the whole plan, escaped from the banquet hall, but couldn't help but rush to the roof with a few guards.

"Boom."

But before Dr. Maru reached the top floor, he heard an explosion from above, mixed with the sound of metal falling to the ground.

Damn it, the cannon was blown up! Who on earth did it? ! Dr. Wan was extremely angry and said angrily: "Go and see who ruined our plan, and kill them without mercy!"

Just at this moment, Rosen came down from the roof and saw Dr. Maru. He immediately pulled out his pistol and opened fire.

"Kill him." The guard next to Dr. Maru also saw Rosen, shouted and shot at Rosen.

At such a close distance, it is of course better to strike first.

What's more, Rosen has the skill of rapid shooting, not only is his shot fast, but his gun is also fast.

Before the gunshots died down, all the guards around Dr. Maru had been shot and fell to the ground, deader than dead.

"Who are you?" Dr. Wan, who was wearing a strange mask, was panicking but tried to stay calm. "As long as you don't kill me, I don't care about money or power..."

"boom."

Rosen didn't bother to talk any more and shot her directly between the eyebrows.

Dr. Wan fell to the ground on the spot and died with his eyes open.

I guess she never thought until her death that Rosen would shoot without even saying a word.

"You almost convinced me, but it's a pity that you are more important to me." Rosen blew away the smoke from the muzzle of the gun and said lightly.

"Achievement obtained: Killed Dr. Maru and gained 500 merit points."

"Your personal level has been raised to LV7. You have 5 free attribute points and 1 skill point to allocate."

"Get extra reward: Dr. Maru's Killer Medal."

"When you wear this medal, your resistance to toxins will increase by an additional 100%. You will be immune to 90% of biological toxins, 70% of viruses, and completely immune to any kind of poison gas."

"Do you want to receive it now?"

"receive."