Pros:

-Working select fire mod
-Three *mostly* functional fire modes to choose from
-Semi auto is great for conserving ammo on high ROF weapons, or while you have special ammo active
-Sound effects for switching firing modes :D
-Reticle changes color depending on firing mode
-Improved semi-auto and burst
-safety mode

Cons:

-Burst can be still be kinda wonky, but not as much
-overrides other autoexec.cfg functions
-Semi-auto occasionally fires two bullets

Conclusion:

A major improvement, and even better with the safety function. Well done.