ArmamentReport

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ArmamentReport
{
    class Program
    {
        static void Main(string[] args)
        {
            Menu menu = new Menu();
            menu.Run();
        }
    }

    class Menu
    {
        private List<Soldier> _soldiers;

        public Menu()
        {
            _soldiers = new List<Soldier>()
            {
                new Soldier("Bob", "АК-74", "Сержант", 7),
                new Soldier("Anna", "Сайга", "Рядовой", 1),
                new Soldier("Jhonny", "М4", "Генерал", 20),
                new Soldier("Mony", "АКС-74У", "Генерал-майор", 5),
                new Soldier("Lina", "АС ВАЛ", "Майор", 10)
            };
        }

        public void Run()
        {
            bool isRun = true;

            Console.WriteLine("\n1)Вывести всех солдат\n" +
                    "2)Выход");
            Console.Write("Ввод: ");

            while (isRun)
            {
                switch(Console.ReadLine())
                {
                    case "1":
                        ShowSoldiersInfo();
                        break;
                    case "2":
                        isRun = false;
                        break;
                }
            }
        }

        public void ShowSoldiersInfo()
        {
            var filteredSoldiers = _soldiers.Select(soldier => new
            {
                soldier.Name,
                soldier.Rank
            }).ToList();

            foreach (var soldier in filteredSoldiers)
            {
                Console.WriteLine(soldier.Name + "; Звание: " + soldier.Rank);
            }
        }
    }

    class Soldier
    {
        public string Name { get; private set; }
        public string Armament { get; private set; }
        public string Rank { get; private set; }
        public int MilitaryServiceAge { get; private set; }

        public Soldier(string name, string armanent, string rank, int militaryServiceAge)
        {
            Name = name;
            Armament = armanent;
            Rank = rank;
            MilitaryServiceAge = militaryServiceAge;
        }
    }
}