◾ Update version 1.4, if you encounter bugs welcome feedback in the comment. 
◾ The map is currently the first chapter, will slowly make updates to subsequent chapters.

Map filename:
?unattainable_1	
?unattainable_2	

Game Tip: 
 ? Please enable the game hints when you playing, otherwise the map will not play properly. (Options - Multiplayer - Game Instructor) 
 ? If you are unable to pick up objects, please check if there are other mods or maps that affect the functionality of this map. Inability to pick up objects will prevent you from playing properly. 
The map includes dynamic custom music, and it is recommended to turn up the music volume.

• This map is not guaranteed to run properly with a large number of mods and a large number of players, so please disable the mods yourself if the game is crashing
• The Tank and Witch in the first stage are spawned by the game director, not pre-placed by the author.
• If you are playing solo with bots, guide your bots teammates to pick up guns and buy weapons for them, and try to keep them alive to assist you.
• The difficulty of the second stage depends on how many human players and the difficulty of the game, if the bots mod will affect the operation of the map please disable it.
• If the difficulty is too high or too low, choose a difficulty to play on that suits you.
• When the tank is coming, stay away from the car, do not forget that you are playing the L4D2, the car can be whacked fly by the tank .

 Known bugs and defects: 
• No Cubemap in the first stage due to the game engine.
• When you enter the map, the first time you meet a common Infected may stumble, probably because the game is loading the Infected model for the first time.
• Too many vertices in individual locations, which affects the frame rate.
• Some scenes have shadow problems.
• Due to imperfect nav part of the special infected will be stuck by the vehicle.
• Rescue vehicle animation may be broken.
If you meet bugs and problems can try to restart to solve, also welcome feedback.

I'm glad you play my map, if you play happy I will be more happy.
================================================================================================

? 更新1.4版，如遇bug欢迎留言区反馈；
? 地图目前是第一章，会慢慢制作更新后续章节。

?注意事项
◽ 每关刚进入地图时前进路上画面会顿挫，原因为游戏正在加载小僵尸模型；
◽如果出红色模型ERROR和黑紫格子贴图，请确认已订阅全部的三个部分，同时要确认创意工坊是否真的下载完了三部分。如果还不行，可取消订阅后去封面左上角网址网页内寻找VPK包直接下载。
◽ 本地图包含收集建造元素，如果不喜欢此类元素请不要尝试。
◽ 请不要单通专家甚至高级难度，你真的过不去，这是为人多时候联机准备的难度。

?地图文件名：
◽ unattainable_1
◽ unattainable_2

中文介绍写不下了，请进入地图封面左上角网址阅读或进入steamcommunity删.删c删om/sharedfiles/filedetails/?id=2661368410