fixed redundant dropping when incapped

shoot no longer drop your secondary weapon on respawn

- return of spitter slowdown, but hopefully less annoying and bullshit

- included custom defib revive health script to match redux health mechanics

- disabled rescue respawns for all difficulties (frick you)

- rework of the script to exclude some stuff that disables finale music for some reason

- slightly increased the accuracy and fire rate of the AK-74u
- removed spitter spit slowing down the player
- nerfed spitter speed and health slightly

- fixed random hordes showing up