"Di... Di... Di... Di..."


    When the level II alarm sounded inside the base, the forerunner immediately contacted the intelligent brain of the command center.


    "Smart brain, report the situation!"


    "Commander, our submarine early warning radar deployed offshore has captured some strange fluctuations, suspected to be Decepticons!"


    Submarine radar was first deployed on the seabed around trindadi island to detect submarines of various countries that are increasingly active in the nearby waters.


    Later, with the invasion of replica soldiers, when summarizing after the war, sun Cheng found that there were too many problems in the security and defense system on the island.


    As a result, the island''s defense system was comprehensively upgraded.


    The submarine detection radar originally deployed in the surrounding waters to spy on submarines of human countries is also being upgraded.


    After several months of technological upgrading, radar has been deployed not only in the waters around trindadi Island, but also around several other islands.


    The new submarine radar can not only detect submarines in the surrounding waters, but also various deep-sea unmanned detection equipment that have begun to rise in recent years.


    Even Decepticons and Autobots can be detected by undersea radar.


    However, due to a series of reasons, although the detection range of submarine radar is 470km, if you want to determine the identity of Decepticons and Autobots, you must wait until the other party enters the best detection area of radar, that is, within 130km, to determine the identity of the other party.


    As soon as the forerunner heard the speculation of zhinao, a fierce look appeared on his face.


    "Send me coordinates and more specific information, monitor closely and update my data in real time!"


    "Yes, sir commander!"


    The suspected intruder discovered by zhinao is likely to be Decepticons, and the forerunners still agree.


    They still have some cooperation with Autobots, although the existence of natural enemies makes the alliance between themselves and Autobots unstable.


    However, at present, the Autobots on earth are basically only active in Africa. There is the great enemy of the Decepticon army. As long as Optimus Prime is all right, even if the natural enemies become the leader of Autobots again, they should not take the lead in sneaking attacks on them.


    The pioneer is still waiting for more accurate data from submarine radar, but he hasn''t done anything while waiting for his flagship.


    Sun Cheng handed over the black market to him. The forerunner is the top commander here, with management responsibilities including daily supervision and security defense.


    Cautiously, he also began to give orders quickly during the waiting period: "control center, release two undersea unmanned detectors to the northwest sea area at the coordinate XXXX!"


    "Roger, commander, the undersea unmanned probe will be released in three minutes!"


    "Sprint, you lead a team of Decepticons and immediately go to the Dumar sea reef to guard temporarily! The submarine radar has captured some strange fluctuations in the direction of XXXX in the northwest sea area."


    The sprint was the first time that the Decepticons led the Decepticons to come to support after the replica soldiers invaded trindadi island.


    After replacing the new body, he is now a senior soldier. He was also left on the island by sun Cheng. He is one of the most important combat forces under the forerunner.


    After the sprint determined that it was the pioneer in the communication channel, it immediately replied: "received, sir, I''ll take a team of soldiers to Dumar to guard!"


    Dumar sea reef belt is a group of annular sea reef belt located about seven kilometers away from the north of trindadi island. Dumar is one of the largest sea reefs, with a size of only more than 600 square meters.


    The rest of the reefs are only exposed to the sea in the range of tens to two or three hundred square meters. Because the area is too small and has no development value, these reefs are not within the scope of daily patrol.


    So once there is an intruder, this area will easily become a breakthrough.


    After making the safest order, the forerunner waited patiently.


    After the release of two undersea unmanned probes, the exploration ability of the sub base on trindadi island to the target sea area has been rapidly improved.


    Unmanned detectors are somewhat similar to submarines, but they are much smaller. Each ship is only about 30 tons, equipped with strong power detection and video recording systems.


    It can dive up to 5000 meters underwater, with a maximum speed of 84 knots.


    In order to prevent being attacked or eaten by large marine organisms on the seabed, this unmanned detector is equipped with a small gun. When threatened, it can shoot a special steel gun with a diameter of about 11 cm and a length of nearly 3 meters.


    Because of the full power propulsion, the detector soon entered and drove out for hundreds of kilometers, and was about to contact the unknown target in rapid approach.


    Then the next moment, the alarm sounded in the control center of the sub base on the island, and the forerunner also received a notice.


    "Commander, we have lost contact with the detector."


    The forerunner clenched his fist and made a crackling sound of metal friction.


    "Did you shoot or detect anything?"


    "Nothing was found. The data transmitted back at last showed that the missile launched by the other party at least tens of kilometers away hit our unmanned reconnaissance device."


    In a moment, the forerunner understood.


    "Enemy attack!"


    He gave orders in a deep voice, but his voice was full of war.


    "Wait for my command and be ready to sound the alarm."


    "All the Decepticons on the island began to assemble immediately."


    "Control center, prepare to release the intelligent mine!"


    "Inform the ghost fleet patrolling nearby, transmit the accurate coordinates to them, and order to release the torpedo to the target sea area immediately!"


    Sun Cheng has considered the possible attack from the seabed and made some targeted arrangements.


    However, due to the complexity of the seabed, as defenders, they will be more passive than the intruder when facing the invasion from the seabed.


    The forerunner soon realized this, but he had to wait patiently before more accurate information was transmitted.


    Soon, the central control brain on the island processed the data captured by the submarine radar and immediately passed it to the pioneers.


    "Your Excellency, the latest data has been processed. Radar detected 17 intruders and identified the target as Decepticons."


    Almost at the same time, the dull explosion rang out in the sea hundreds of kilometers away.


    The forerunner snorted, "I know. Continue to wait for my orders. There is no need to sound the alarm before getting my orders."


    Just seventeen invading Decepticons, although they don''t know each other''s strength.


    However, the forerunners were confident that they would repel them with the current defensive strength on the island.


    He quickly rushed to the northwest of the island. As the commander of trindadi sub base, he was also the main combat force here.


    Now, it''s time to fight.


    ……


    Thanks to "book friends 20180831060343126" and "WF no wind" for their great reward and support.