A month later, Earl Rose's laboratory had long since turned into Derek's officer's classroom.

"Today's course content is the third session of infantry and artillery coordination, in the first two lessons, we learned about artillery preparation and the protection of artillery positions, in this lesson we will learn about the artillery fire extension strike between infantry marches, if any of you fools dare to throw shells on your own heads, I must hang that waste commander on the city gate tower to dry!

First of all, when the artillery preparation is over, the infantry should move to a distance of 200~400 meters from the enemy, occupy the point of attack, and immediately launch an attack when the artillery fire stops, the attacking force should be divided into two echelons, the first echelon will attack, when the attack reaches 2/3 of the range of rapid-fire guns, it will be transferred to defense, the second echelon will continue to attack covered by heavy artillery, and the rapid-fire artillery positions will begin to move forward, and the commanders can adjust according to the actual situation of the battlefield.

Who, then, can answer when my infantry should charge?"

Derek asked, leaning forward with his hands pressed on the podium.

And the goblin officers had already been dizzy to listen, after all, the military theories spoken by Derek were too advanced compared to this era, and they were silent and did not dare to speak.

"You, that's right, don't look at it, it's you 9527, you come and go. Derek casually pointed to an officer and glanced at his badge.

"Report to the commander, the timing of the infantry charge should be more than half an hour before the artillery fire is prepared, or when the altitude of the opponent's position is cut more than two centimeters above sea level!"

The goblin officer, who had been named by Derek, stood up and saluted, and replied loudly.

Derek nodded with satisfaction, that's right, you little goblin comrade has a great future!" "Perfect answer, soldier, you managed to get my attention, what's your name." ”

"Report sir, my name is Rokossovsky!" Goblin Officer 9527 heard the praise of his idol, and his whole body trembled with excitement, and he swung as if he had had a stroke, and replied loudly in the envious eyes of the other earth spirits.

Oh, that's no wonder, yes, the Windy City will be handed over to you in the future!

"You all remember to me that there is nothing on the battlefield that cannot be solved by an hour and a half of artillery fire! If half an hour is not enough, then another hour! Until there is no one on the opponent's position who can breathe, then send infantry to collect the corpses! It's okay to give me some crooked idea of a suicide terrorist attack! Remember, our goal?"

"Zero casualties!" "Good, everyone has learned to be obedient since the last time they repaired that bastard that yelled and didn't have a standing tooth.

......

It is quite entertaining to take classes with goblin officers who have a certain scientific foundation, and a class is full of honor students, and it is estimated that the head teacher in his previous life will wake up with a smile in his dreams.

After all, one of the goblins counts as one, and the average is at least a junior high school graduate, and the elementary modern military theory can be fully understood.

But the group of sports students of the beast clan is different, Derek said that the head is big, so the training subjects are completed perfectly, but when it comes to class, then I'm sorry, we are all scumbags, I can't understand it at all, young master!

"We have already talked about the basic performance and operation mode of the magic mecha, from today, let's learn the theory of energy air combat, first of all, there is a key parameter in the flight process called 'unit gravity residual power' here, we refer to it as energy for short.

The calculation formula of this parameter is: the thrust of the aircraft minus the drag multiplied by the corresponding speed to obtain the residual power, and the gravity of the aircraft divided by the residual power is the 'residual power per unit gravity', and it can be seen from the flight mechanics of the aircraft that the longitudinal acceleration and climb rate are directly proportional to the energy......"

"Kazkaz ......" The sound of chewing potato chips interrupted Derek's class, and the initiator ate unnoticed.

"Kaka, tell me about the airflow when the magic mecha flies!" Derek, who was in class, jumped out of the corner of his eyes, and finally couldn't bear to call Kaka, who was stealing food.

Cut, do you think I can't see the chips if you hide them under your breasts?

Forget it, it's good to ask a simple question, somehow, Derek is inexplicably soft-hearted and makes the question less difficult.

"What do you say? Master. As if he was afraid that Derek would confiscate it, Kaka hurriedly poured the remaining potato chips in the bag into his hand, swallowed it before standing up and asked innocently.

"Don't call me master, you must call me commander in the army!"

With a serious face, Derek dismissed Kaka's attempt to get through.

A young girl from Kaka's clan secretly handed over a note, and Derek pretended not to see it. The hint is not tied either, as long as you can get it right.

"Oh, I know, it's like this: huhuhuhu......" Kaka thief peeked at him, and immediately realized, pursed his mouth and blew hard, the huge chest rose and fell violently with Kaka's hard breathing, and it looked very cute.

"Get me out! Run twenty laps around the test site! Gear up!"

"Okay, young master. Kaka, who had been punished, ran out happily in the envy of the other orcs.

This group of scumbags would rather go running than take classes here.

Finally, after Derek organized several goblin bosses to set up night school remedial classes for training and regular classes for the Orc students, he finally got better.

After the selection of recruits, Derek fell into the busiest time since the time crossing, but occasionally he would wonder what that kiss meant? He didn't know the answer, he didn't dare to ask, and Sister Lina didn't mean to explain, everything was as usual, serving every day, although Derek was always distracted, he didn't dare to make any extra moves.

As for the little princess, Derek took out an unprecedented 9% off equipment purchase volume, plus a full ten sets of comics to make amends, and the letter sent by the little princess to the royal capital finally had a reply, and a whole box of gold coins came with the reply.

As if she was going to fight in the ring with Derek, the little princess went out early and returned late every day, and the whole person was soaked in the Dragon's Tooth Legion and didn't know what she was doing.

Fortunately, the recruit training of the mercenary regiment officially began, and Derek had no time to take care of it, so he only cared about arranging for the mercenary corps to be under the leadership of their respective commanders and put into intense training every day according to the modern training subjects formulated by Derek.

It's like queue training, obstacle running, or whatever, all the military training programs that Derek can think of or the special forces training that he sees on TV are all there.

Because the creatures in this world have stronger physical fitness, all subjects are increased without increasing the price.

And he also personally gave lessons to the officers every day, and the day was full, military theory in the morning, and all the mecha regiments gathered in the afternoon to talk about the "Magic Mecha Operation Specification".

"Report to the sir......!" Derek was giving a lesson to the knights in disguise, when a soldier of the City Defense Legion barged in, as if sensing the unkind gaze of the orcs, and forcibly held back the words that followed.

"Say it," Derek waved his hand absently.

"The military headquarters ordered that due to the joint efforts of the wolf clan and the wild boar clan, a total of fifteen legions attacked Charles Province, and ordered the Dragon's Tooth Legion to quickly reinforce Fort Tramor. ”