Compound2 a3

Lotsa changes this time

• Changed starting area: looks better and feels nicer to start in
• added music to each event
• added physics bottles and other small details to the map
• increased difficulty of train holdout, may have been a bit too easy

yeah I'm lazy I know
anyway patch notes have fun

• Reworked final area: bigger, more height variation, places to hold out, everything
  
• Added detail sprites across the whole map
  
• Changed Holdout logic: shorter overall, easier waves, not quite so overwhelming
• Bug fixes

this might be it

oops

messed it up again lmao

screwed up the nav