Observe the scientific training of a brigade in the Xinjiang Military Region of the sample, and explore the "optimal solution" for improving combat effectiveness. The northwest Gobi training ground is full of cold wind and yellow sand. A live drill organized by a brigade of Xinjiang Military Region kicked off. The two UAVs of the reconnaissance company of the brigade circuited to the weak alert areas on both sides of the "enemy", and the ground units quietly approached the front and used various means to implement infiltration. Guided by the spirit of the 20th National Congress of the Communist Party of China (CPC), the brigade further promoted combat based military training and promoted the transformation of training results into practice. On the training ground, a fierce battle between red and blue is in progress. At the end of the drill, the officers and soldiers of the two opposing companies sat together to review the drill process and find the gap. "Our new combat force was born and grew in the decade of the new era. It has experienced hardships and setbacks, and now it has tasted more and more victory." A brigade leader who was stationed in the company said that the report of the 20th National Congress of the Communist Party of China (CPC) proposed to "deeply promote combat based military training, deepen joint training, confrontation training, and scientific and technological training", which provided a fundamental basis for the transformation and upgrading of the training of new territory and new quality combat forces. The army must constantly explore scientific training methods in practice, improve the scientific training level of officers and soldiers, and explore the "optimal solution" to improve combat effectiveness. Key words: calculate the precision of training, and make clear the quality and efficiency of training. "In a joint exercise organized by the superior, we drove the UAV, passed through the cloud and fog, and sent the coordinate information of the command hub of the blue army back to the Red Army command post, and guided the artillery force to carry out accurate fire strikes..." Learning, publicizing and implementing the spirit of the 20th CPC National Congress, a brigade of the Xinjiang Military Region organized a strong military story meeting, Zhang Zhe, the company commander of the first company, spoke eloquently about the training results after the new equipment was assembled. From the realization of independent real flight, to the development of test flight under actual combat conditions, and to the creation of good results in joint exercises... Since the new UAV was installed, the officers and soldiers of the company have set up camps in the deep mountains, Gobi, and snow covered plateau, seizing the golden period of military training, and their combat effectiveness has been continuously improved. "One of the important reasons why our company's new equipment can quickly form combat capability is that we always aim at the actual combat target and constantly explore the precise training." Zhang Zhe can't forget that failed training experience - in the face of a sudden heavy rain, the second company successfully completed the task, but they failed to return with more advanced UAVs. The clue is hidden in a training plan. Xu Feng, the head of a Xinjiang Military Region, who was stationed in the brigade and helped to build the brigade, checked the curriculum of the two companies during the exercise and training mission, and found that the curriculum of the second company wrote "organizing actual flight and detection training in special weather", and even the rainfall and wind speed prediction of the exercise area on the day also appeared in the remarks column. On the contrary, not only did Yilian fail to formulate a similar plan, but he also had a rough control over other courses. "Extensive training plans will inevitably lead to extensive training management and vague definition of effectiveness." The comparison of the two lesson schedules leads to reflection not only in the minds of a company of officers and soldiers. "Training is to exchange the time and energy of officers and soldiers for the improvement of combat capability, which must be settled." New types of weapons and equipment have been installed one after another. How can we make clear the abacus for improving training quality and efficiency? At the military training analysis and evaluation meeting