A burst of artillery fire smashed into the slope of Heights Zero, and as usual, there was another wave of shaking, but because these shells were coming from the direction of Gafsa, and most of the shells were directly on the anti-slope, that is, on the top of the tunnel fortifications, the shaking would be much more violent than before.

However, perhaps because of a similar experience before, or perhaps because the French battalion had been boosted in morale, or because they had just won a battle that had given them confidence, the soldiers did not react to the heavier bombardment, and many of them were drinking water and nibbling on bread in the sand that had fallen down...... Most of them were too nervous to eat during the previous battles at the bus station and airport, and now they feel hungry when they relax.

Colonel Slein guessed wrong, the bombardment was not violent, and lasted only a few minutes.

Qin Chuan thought that this should have something to do with the fact that a large number of British ammunition was blown up at the bus station and airport...... Of course, the Allies could also use transport planes for airdrops or emergency transport to Gafsa Airport.

But after all, the transportation capacity was limited, and the Allies had to choose between fuel, ammunition, food, and even bullets and shells between ammunition, so they no longer dared to pile tons of ammunition into enemy positions as before.

After the sound of the cannon weakened, Qin Chuan ran to the mouth of the tunnel and cautiously poked his head out to look down...... Dozens of "Sherman" tanks were majestic, and their muzzles were held high, covering the groups of British infantry behind them. There were also several mine-sweeping tanks in front, apparently fearing that the Germans were laying mines in front of their positions.

However, the British army was too worried about this, and the Germans had just recaptured their positions from the British not long ago, and it was too late to lay mines...... Minelaying is not a panacea, although it is indeed very useful, but it requires a large area to be deployed to deter and delay the enemy, but the tunnel is very narrow and the space is very valuable, so it is a very cost-effective tactic for tunneling defense.

There are some changes in the offensive tactics of the British army this time...... Their sappers first brought a bunch of steel triangular slopes by car, which were regularly lined up at the foot of the hill and reinforced with sandbags, and then the tanks slowly drove up under the guidance of the sappers, so that the tank guns were raised high and aimed at the fortifications on Ground Zero.

This is a good way, seeing this, Qin Chuan couldn't help but secretly praise, so that the problem of insufficient elevation angle of the tank can be solved.

But there are pros and cons to everything, and this is not conducive to the tank's target...... But it's better to be able to beat than not to be able to play.

Perhaps to test their skills, these tanks fired shells at the mouth of the tunnel on the high ground.

The tank's close-range direct aim was much more accurate than that of long-range artillery, and in an instant the vicinity of the tunnel mouth was smashed into a puff of smoke.

Then the British began to move in earnest, and as the commander gave the order, the soldiers of the 1st Airborne Regiment, hiding behind the tanks, rushed forward with guns.

The commander of the 1st Airborne Regiment was Colonel Bard, who was also the front-line commander of the assault on Heights Zero.

Colonel Bard didn't take the battle in front of him seriously, because in his mind, the Germans hiding in the tunnels were simply dead...... Bard's military theories taught him that the most important thing for the two armies to face off was to deploy their forces head-on.

It is obvious that the side that deploys its forces will be able to exert greater firepower and combat effectiveness, while the side that cannot deploy its forces will only be restrained everywhere, even if the total number of troops is more than that of the other side.

There are even those who believe that at some point the failure to deploy troops that could not exert their firepower was almost equivalent to none.

Now the British were fully deployed in front of the forces and firepower, and there was also the cover of tanks, while the Germans ...... but hiding in the tunnel.

"God!" Colonel Bard said to the staff officer: "It is very likely that one platoon of them has only one tunnel opening, which means that a platoon can only exert its combat effectiveness with only two or three soldiers, and they still want to block us?!" ”

"Colonel!" The staff officer reminded: "The general meant, beware of the ambush of the Germans!" ”

Colonel Bard smiled disdainfully: "They're all hiding in the tunnel, I don't think they can have any ambush!" ”

Colonel Bard's views can be either right or wrong.

He was right because the Germans in the tunnels were not ambushed.

To say that he was wrong was that these tunnels were far from being as simple as he thought.

"Bang!" A single shot rang out, and a bullet knocked down a machine gunner standing on the tank.

Colonel Bud looked behind him and yelled, "Fuck, who did that?" ”

Colonel Bard's first reaction was that the Heavy had been defeated by himself...... This is not uncommon on the battlefield, such as a misfire of a gun, or a misfire.

But Colonel Bard soon realized that he was wrong, because in the next second, bullets rained down on the backs of the British soldiers, accompanied by a whistling of shells...... Then there was a chaotic "boom", and more than a dozen mortar shells exploded in the crowd of British troops.

Colonel Bud, who was lying on the ground, looked in the direction where the gunfire came from, it turned out to be the white 217 high ground behind the side of the 312 high ground, and soon another high ground also fired several shells at the British army, and the shells fell very accurately into the British crowd, and immediately blew down dozens of people.

This is where the pitfalls of the tunnel tactics come in, and the high ground is not independent of each other, of course they can cover each other, and as long as the firepower reaches the adjacent tunnels, one or several tunnels will be dug.

The best of these is mortars, most of the mortars have a range of several kilometers, with the target high ground as the center of the circle, and the range of a few kilometers is a circle for the radius, and all the high ground and positions in this circle can provide fire cover for the target high ground.

In particular, mortars can also be fired from another slope over high ground, so it is only necessary to place a few artillery observers on the hilltop position to fire shells at the enemy without even seeing where the shells are coming from.

"Hidden! Take cover! Colonel Bard commanded loudly.

Of course, he would not order the withdrawal of troops so easily, even if he did, he thought that he only needed to hold on for a little longer, and his troops and the Australian division would be able to take this high ground.

But Colonel Bard soon discovered that this was not the case, and as the British soldiers poured into the high ground in droves, gunfire rang out one after another on the high ground...... As mentioned before, the mouth of the tunnel is also covering each other, and when the British army runs to a certain tunnel mouth, they will inevitably show their back or flank in front of another tunnel mouth, which even has a very hidden firing hole, and many British soldiers do not know where the bullets are flying from when they are dying.