Guo Haishan, a machinery squad leader in a certain unit. Look at his name—sea and mountain, so grand! But look at the man himself, he's truly ordinary. However, when Guo Haishan operates a forklift and makes a fork, everyone cheers in admiration! Fork what? Ammunition boxes. A train car brings thousands of stacks, each stack has eight boxes, each box weighs 78 kilograms. Storage and retrieval, unstacking and stacking, all rely on forklifts. One fork lifts four boxes, two forks lift one stack, with gaps of only two fingers' width. If the fork is inaccurate, boxes topple and stacks collapse, easily causing explosions. Guo Haishan joined the machinery squad and has worked for 9 years. He thinks while working, identifying the insertion point as key to safe and fast handling. To practice accuracy, he welded a thin steel bar on the fork and used the forklift to pick up nuts. From grape-sized to peanut-sized, he practiced repeatedly, becoming more and more accurate. Nine years have honed a unique skill. One accurate fork, one steady placement, earning him the nickname "Guo One Fork".

　　In addition to daily ammunition handling tasks, the machinery squad's military training is rigorous and uncompromising. Marksmanship, grenade throwing, tactical drills—"Guo One Fork" leads the squad to strive for excellence in all, especially the 5-kilometer cross-country run with full gear, which is a top priority. Rifle, magazines, grenades; backpack, satchel, large steel helmet, plus a full canteen—carrying 50-60 jin (25-30 kg) of total weight, they must run the full distance and achieve speed. Thus, through winter and summer, in wind and rain, the squad eventually achieved good results and came to participate in the regiment's cross-country competition.

　　Before the competition, "Guo One Fork" carefully checked everyone's equipment, especially weighing the canteens by hand to see if they were full. The assessment team checked without issue, and at the command, the machinery squad shot out like arrows. "Guo One Fork" sometimes led, sometimes brought up the rear; the soldiers charged like tigers down the mountain and leopards leaping across streams, winning first place in the regiment with a time of 19 minutes.

　　Just as the squad was immersed in celebration, "Guo One Fork" suddenly said: "No, I must report to the examiner. Someone secretly poured out the water from their canteen along the way!" These words came like a fork out of nowhere, and the soldiers were stunned. 

　　"Guo One Fork" glared with big eyes: "Who poured it out? Speak up!" 

　　Veteran Cao Lingtao said with a red face: "It was me. Squad leader, it's just a canteen of water, don't report it." 

　　"Guo One Fork" immediately raised his voice: "In battle, this is a canteen of life-saving water! How can you pour it out? The competition is real combat; cutting corners kills! Just like when we fork ammunition boxes, every fork is no small matter, every fork is real work, a slight deviation can cause disaster. Didn't you call me 'Guo One Fork'? Well, anyone who cheats will get a fork from me!"

　　After discussion, the evaluation team decided that pouring out water privately during the competition should result in a deduction; "Guo One Fork" strictly trained and dared to expose shortcomings, and this fork was good, so points should be added. In the end, the machinery squad was rated first in the regiment for the 5-kilometer cross-country run. 

　　When the medal was delivered to the unit, from a distance, the captain saw the machinery squad training in full gear for the 5-kilometer cross-country run. Guo Haishan and Cao Lingtao were running at the front.