MvM GD Caster2 1.2

-Fixed Left MANN Co. spawn's upgrade station.
-Corrected bots getting stuck in a particular corner due to nav mesh issue.
-Corrected nuke timer not working as intended.

-Minor visual changes near the bots' initial drop zone :
___Changed the vans' models to the London Pack ones.

-Added DoMessWithProfile's 6 players mission "Hiring and Firing".


Feel free to message me if anything got broken/if you have any suggestion.

Temporary fix to ensure the missions work:
_Added robot_caster.pop
_Added robot_andrew.pop

TO DO:
_Merge both .pop files.