## Added
* UAC pistol
  * Uses the .45 caliber

## Changed
* Making LPG in the compressor now requires two compression steps
  * This fixes an issue where polymer is unobtainable in 528 mode since petroleum at 1PU not being obtainable

## Fixed
* Fixed issue where mk5 explosions would behave weirdly in their origin chunk, often blowing through bedrock and thick layers of concrete