The centaur was so fast that it immediately approached in front of an iron guard, and the spear in his hand flashed with silver light, stabbing into the iron guard's chest with a strong momentum!

Whether it is the speed seen by the naked eye or the sound of the wind, it can be judged that this has surpassed the strength of ordinary knights to charge with a spear, if they are hit by this blow, ordinary people will be knocked over even if they are wearing thick enough armor, and they will vomit blood from internal injuries.

But the Iron Guard was no longer what it used to be, and he roared angrily, holding up the portable cannon with both hands, and slamming it on the barrel of the gun at the last moment.

The tip of the spear deflected and stabbed him in the shoulder—not through, only a scar on the rounded shoulder armor.

At this moment, Martin had already thrown down the portable cannon without hesitation, pulled out a halberd from his back, and rushed towards the centaur.

The centaur raised his front hooves and kicked the Iron Guard in the chest in front of him, as he withdrew his spear and stabbed Martin at the side.

But Martin didn't dodge or dodge, and almost rushed forward with the momentum of the same end.

This time, the centaur's spear lost its charge bonus, and although it was still extremely powerful, it stabbed into Martin's thickened breastplate and slipped away after creating a dent.

Martin seized the opportunity, shouted angrily, and swung his halberd with all his might.

The halberd used by the Iron Guard was larger and more well-made than half of the soldiers', and the pointed barb at one end of the halberd shimmered with fighting energy, pecking it like a shrunken pickaxe, and although it made a sound like a clash of gold and iron with the body of the centaur monster, it still pierced nearly two inches after all.

The centaur immediately twisted his body and tried to break free, but Martin held on to the halberd and refused to let go, and the halberd shaft was dangerously bent, but it was a specially prepared artifact by Luo Ming after all, and it did not break for a while, and successfully dragged the monster in place, unable to escape immediately.

The guard who was kicked down by it crawled up half-crouching with a portable cannon, and without hesitation, fired a deadly shot at the centaur monster.

A large hole appeared in the center of the centaur monster's body, and the surrounding area was full of cracks, like glass smashed by stones. Its movements froze quickly, and then it fell apart and fell to the ground.

On the other side, the Earth and Stone Giant has also been bombarded by the last Iron Guard, and its recovery power can no longer keep up with the speed of its body collapse.

And behind him, reinforcements have already arrived.

Martin gasped and stroked a large sunken piece of breastplate, feeling palpitating.

Before he was transformed, he had already become a high-level swordsman, and he could trot in the ordinary sense of heavy armor, such as full-body armor that was more than two millimeters thick at its thickest.

But in the face of the monster just now, I'm afraid that I will be stabbed through the heart by a spear.

You know, the cuirass he is wearing now is four millimeters thick.

According to what Luo Ming had previously taught in the Officers' Academy, the defensive power of armor has a wonderful exponential relationship with its thickness under the premise that the texture of steel remains the same.

Martin didn't know much about exponential operations, but he made a few simple conclusions:

If the defense of one millimeter of armor is 1, then the defense of two millimeters of armor is close to 3, the defense of three-millimeter armor is about 5.5, and at four millimeters, the defense has reached a terrifying value of 8.6.

Even a heavy arquebus, as long as it is about forty meters away, it is basically impossible to penetrate it.