Rework Fire Mode Mods

[GuardianReaper0]

Currently the auto, burst, and semi mods seem pretty much pointless. 

Besides the obvious, rework should include:

- Auto increases fire rate by 20%
 

- Burst increases fire rate by 10% and damage by 10%
 

- Semi increases damage by 20%
 

(rough percentages, but you get the idea)