3D FPS Tutorial

I apologize for this being about an hour late, I spent 3 hours trying to fix a multitude of bugs not realizing I never added GameManager... but now it works! 

my 3 proposed modifications: 

1. Level 1 is revamped with more enemy challenges and a new layout, with a difficult array of enemies you must face at the end. 

2. Level 2 is in a new setting, is more parkour oriented with checkpoints to assist along the way. 

3. At the end of level 2 is a grand boss arena where you have to shoot and fight the queen bug, lots of HP and lots of damage!