Updates after more play testing

There are some pretty great changes after some play testing. This is a quick rundown:

• Updated: The armor usage die is a little more hardy and clarified how the usage die should be used
• Updated: The grappling rules were updated to work with player facing rolls
• Updated: Better explanation of how vehicle features work
• Updated: Ranged weapons now use a usage die for ammo instead of a unique mechanic
• New: Cover rule for combat
• New: Vehicles have a usage die for fuel
• New: Added a sample enemy along with the sample character and vehicle sheets
• New: Added an optional rule for crits
• Updated: Space, Fantasy, and Solo documents were updated to reflect the above changes to the core rules.
  

Fantasy Hack

• Updated: Provided an explanation for how magic users and clerics get their spells back once forgotten