In the following days, the General Staff reviewed and summarized the entire process of Operation Torch based on the traces of Asha and the search results of the ruins of Tachira. Reports arrive at Roland's desk almost every day, stacked on top of each other almost half a person's height.

More and more details are becoming clearer.

For example, the huge divine stones that appeared in the battle of Wangbeipo and the siege of Taqila successively came from the veins of the divine stones. At the bottom of the mine, the detectives found the missing part of the ore cluster - the two medium-sized pillars had been cut in half, and the sections were very smooth, as if they had been cut by a sharp weapon.

Although the backtracking ability cannot be used near the Divine Stone, it is likely to be related to the Giant Skeleton in the overall situation. In fact, the latter is not just a means of transport, but also acts as a small obelisk that can regenerate the red mist, as evidenced by the corrupted land surrounding the ruins. However, compared to the obelisk that often covers hundreds of kilometers, its coverage area is only one or two hundred meters, and it cannot be created out of nothing, and it still needs the supply of the red line to maintain.

As a "sentinel point" that can move freely, its strategic significance is self-evident. The conclusion given by the General Staff is that this super-large carrier is also a rare breed for the devil compared to the spider demon, otherwise it can completely replace the role of the outpost and occupy the entire territory of the Fertile Plains before the humans can react.

In addition, most of the passages behind Tachira were dug by the Spider Demons - their ability to dig into the ground was far less than that of Devouring Worms, but they were still much better than the Madman. These passages all depart from the Divine Stone Cave, and the depth from the surface obviously takes into account the threshold of observational ability, and with sufficient preparation time, it is not easy to discover.

Since both Selene and Agatha tend to think of the Giant Skeleton and the Spider Demon as the same type of Devil, Roland has also given it a new name: the Freak Beast, to distinguish carrier enemies from other Devils, and with a specific prefix, it can be quickly named for the same type of Devil that has not yet been discovered.

At present, these two carriers are named "fortress-type freaks" and "spider-type freaks" respectively, of which the latter is divided into the first type of stone needle throwing and the second type of throwing personnel, and the accurate names are not only conducive to combat deduction and order issuance, but also more convenient for post-war statistics and records.

In addition to the detailed analysis of the battle situation, another focus of Roland's attention is the shortcomings and areas for improvement listed by the General Staff Department according to the results.

Among them, Edith personally made a report, and it is also the first place among many problems, which is still the shortcoming of the investigation ability.

Aside from the sky, in the history of human warfare, tunnel warfare has always been a strange trick due to the limitation of excavation tools and cost-effectiveness ratio, and cannot be used as a conventional tactical means. However, this rule is not applicable to devouring worms and spider-like freaks - with enough carriers, the enemy may even be able to dig an underground passage for a large army in a short time, so the ground beneath your feet becomes a dangerous area to be guarded against.

There is no doubt that Sylvie alone is not only too much to do, but also extremely uneconomical. The cost of the Magic Eye will be greatly increased when it penetrates obstacles, and under the condition that the total mana level is fixed, it can monitor a target ten kilometers away from the surface for a whole day, and if you scan the formation, it is only a shallow layer the size of one or two football fields and three or four meters deep.

What's more, except for the transcendent, there is a threshold for all witches' abilities, and when a certain condition is exceeded, the mana consumption will show an exponential increase, in this case, any non-emergency behavior is a waste of mana.

This vigilance work must be undertaken by the First Army itself.

Roland vaguely remembers that in history, there have been times when the two sides of the war used underground monitoring to guard against each other's digging tunnels and raiding positions, and its principle is the same as that of a stethoscope, with the help of the fact that the attenuation of sound propagation in solid is less than that of air transmission, and the movement of the opponent when digging can be more clearly captured.

However, this method is limited to the tunnels being excavated near the position, and traps such as Tachira, which have been laid in advance, cannot solve all the problems by listening alone.

He thought twice before he came up with a feasible method - brazing.

This is a detection method that is widely used in the civil engineering industry, and as one of the two dogs of science and engineering, he often heard his roommate mention it from the Civil Engineering Institute. To put it simply, it is to smash a steel bar vertically into the ground, and judge the softness and hardness of the soil layer according to the distance of each hammer. The test points are generally distributed in plum piles at intervals of several meters, and as long as they are equipped with a probe, several people can complete a large-scale inspection. When the rebar subsidence data suddenly increases, there is a high probability that there will be a void below.

The combination of listening and detection ensures that threats from the underground can be detected without the help of witches.

As for the reconnaissance of the enemy situation in the air, if we want to get rid of the dependence on Lightning and Maisie, the only way to develop the air force is to go.

And when this part can be made up, it depends on Tilly.

In addition, there are many conclusions in the report, such as "relying too much on positions" and "lack of rapid support capabilities", which makes Roland feel a little helpless while lamenting the rapid improvement of the level of the staff - he is not unaware of these problems, but limited by the population of Neverwinter, it is difficult for him to make up for the above shortcomings in a short time.

Finally, among the many reports, there was one observation that caught his attention. It was a report from the lower echelons of the army, submitted by a logistics officer. According to the report, under the high-intensity battle, the performance of the Mark 1 machine gun was not very stable, and after the decisive battle, many soldiers of the machine gun squad complained that they had more time to replace the barrel than to shoot, which also caused a lot of burden on logistics. If I can, hopefully the engineering department will improve it.

This is also the first direct experience that Roland has received from front-line soldiers since the feedback mechanism was established—as first-hand users of weapons, they are the group of people who know best about the advantages and disadvantages of weapons.

In fact, he had noticed an unusual increase in scrapped barrels as early as the attack on Tower One, but he didn't pay much attention to it at the time since the parts could be reforged. Now that I think about it, it should be due to the lack of experience of the shooter and the sharp increase in the pressure of the enemy. During the night battle, the soldiers' spirits were even more nervous, and it was difficult to confirm the results of the battle, so they would not let go even if they almost pressed the trigger. The air-cooled barrel itself is not as good as the water-cooled barrel in terms of staying power, and the previous combat intensity was basically able to cope with it, but now after a long shooting time, the heat dissipation is somewhat unable to keep up.

This also made Roland a little alarmed, he initially used the air re-inlet, air-cooled barrel for purely the purpose of a gun, if it was designed according to the Maxim, it did not conform to the idea of "universal", but the actual effect was not as ideal as he expected. Although the production of tracer shells and the increase in experience in night warfare could alleviate this situation, the enemy committed only a small number of troops to the Western Front. If it really gets to the point where the main force is in a decisive battle and the devil is pouring all over the mountains, the impact of heavy machine gun dumb fire will be fatal.

Thankfully, the report made him realize his mistake.

The solution was to separate the two, replacing the heavy machine guns designed to suppress the enemy with longer barrels with fins, and eliminating the multi-purpose issue. The general-purpose machine gun, which can be used for both hand-held assault and vehicles, has been redesigned to be lightweight based on the Mark I, so that it can meet the needs of future wars.