Winterspring a3

This is a PL map with 4 checkpoints (I've used the PL-template found elsewhere on this site - big thanks to the people that put together the SDK pack it's super helpful!)

Known bugs:

- PL cart stops at checkpoint 3, players need to step out of the trigger and back again to re-trigger the push

• Capturing the first checkpoint will open a new access path for both teams
  
• First forward spawn for Blu team is activated after reaching the second checkpoint, this will also push back the Red spawn

• Second forward spawn for Blu team is activated after reaching the third checkpoint, this will also push back the Red spawn

All types of feedback is welcomed, don't be shy!

Thanks!