Current Target Milestone:  Build prototype level that explores core gameplay mechanic.

In order to meet those goals:

1.  Prototype level sketch must be finalized.

2.  Pathing logic needs to be reworked to allow NPCs to dynamically detach themselves from path and then return to that exact spot on their current route.

3.  Sound must be implemented for certain events in the game.

Just three things out of a very long list of many other things to do and tweak.