I don't know what's wrong with my workspace

namespace TreehouseDefense
{
    class Invader
    {
        private readonly Path _path;
        private int _pathStep = 0;

        public MapLocation Location => _path.GetLocationAt(_pathStep);

        public int Health { get; set; } = 2;

        //True if the ivnader has reached the end of the path
        public bool HasScored { get { return _pathStep >= _path.Length; } }

        public bool IsNuetralized => Health <= 0;

        public bool IsActive => !(IsNuetralized || HasScored);

        public Invader(Path path)
        {
            _path = path;
        }

        public void Move() => _pathStep += 1;

        public void DecreaseHealth(int factor)
        {
            Health -= factor;
        }
    }
}

using System;

namespace TreehouseDefense
{
    class Tower
    {
        private const int _range = 1;
        private const int _power = 1;
        private const double _accuracy = .75;

        private static readonly Random _random = new Random();

        private readonly MapLocation _location;

        public Tower(MapLocation location)
        {
            _location = location;
        }

        public bool IsSuccessfulShot()
        {
            return _random.NextDouble() < _accuracy;
        }

        public void FireOnInvaders(Invader[] invaders)
        {
            foreach(Invader invader in invaders)
            {
                if(invader.IsActive && _location.InRangeOf(invader.Location, _range))
                {
                    if(IsSuccessfulShot())
                    {
                        invader.DecreaseHealth(_power);
                        Console.WriteLine("Shot at and hit an invader!");

                        if(Invader.IsNeutralized)
                        {
                            Console.WriteLine("Neutralized an invader!");
                        }
                    }
                    else
                    {
                        Console.WriteLine("Shot at and missed an invader.");
                    }
                    break;
                }
            }
        }
    }
}