Beginner:

knees

basic takedown defense

review gun from behind

drill: monkey in the middle - groups of 4 or 5

defender in the middle gives combative to the 3 or 4 people surrounding them using pads to push them around.  The last person holds a gun to their back, when they feel it they defend against the gun and reset.

Intermediate:

hand sparring with hooks, uppercuts and straight punches (layer them in as they get warmed up)

hair grab from the front

hair grab from the side

review hair grab from the back

drill: eyes closed any hairgrab

Advanced:

Machine gun takedown

2 opponents - knife and stick