ArrowHacks

Hello! I have here a small and simple device I've been working on since Minecraft 1.8 came out. This version, however can only be played on Minecraft 1.9 or its latest snapshot.

  This device adds a couple of modifications to arrows (the entity itself not the bow) that make them more interesting, such as:

 - exploding arrows, like rockets in a way
 - placeable mines you can detonate
 - voxel gun...?
 - teleporting arrows (yes, its useless because of ender pearls but this is all just proof of concept)
 - placeable mines that detonate if the other player is within its radius of detection

  In my unreleased 1.8 version that also works (but inefficiently), there are many more options, as this version is just a port of sorts of the 1.8 version, just with fixes to make it work better AND is 2 player friendly.


Tutorial and Functions:

  You must first take the schematic file in this project and place this into your world (or just enter the world included). If you use the schematic, do not ever rotate the structure... The chest should be in the bottom right corner of your point of view in MCEdit when you try to import.

  As soon as you enter the world with the device, approach it and enter inside with the door (I'm assuming you're in survival.). Press the button labeled "startup" Then proceed to some pressure plates on the floor that are labeled as "player one" or "player two". Here you select your player number of course... Then approach the chest, and pick up the bow, arrow and book and quill. For the best performance, clear your inventory and hotbar beforehand to reduce bugs with item detection.

  The bow and arrow is ok, but the book and quill is important. The book and quill is the command line for this system. To activate a particular modification or "hack" you have to enter a keyword into it and press done, no signing the book or removing it from your inventory.

Hacks:

1.   tnt   - Type tnt letter for letter, no extra spaces and all lowercase. Applies for all hacks respectively.
  This hack just allows you to shoot arrows that will explode within a few seconds of being shot.
2.   tp   
  This hack works just like ender pearls except that it is based on delay and not the contact of a surface.
3.   sb   
  This hack allows you to place mines of any amount and detonate them all within a split second under your command. the detonation control is an empty map you have to use (right click) to detonate the arrow(s).
4.   mine  
  This hack lets you place an arrow mine that will explode when the other player is nearby it. I do not recommend placing multiple mines like these as I do not know for sure if they will function properly. I would not rely on this too much...
5.   vox
  This hack lets you shoot as many arrows as you want, and when an empty map is activated (the empty map that will be given to you), all the arrows will create a 3x3x3 block sandstone chunk, replacing any existing blocks. Try not to put more than two arrows in the same spot as each other as the mechanism will break, forever not allowing the player who did this to use voxel arrows.
6   off
  This just turns off the mechanism so you now have normal arrows that don't blow up or anything...

pls give recommendations for the redstone/command blocks