Toxicator Underflow Glitch - Westbound Station / Insane - Critical Tower Defense

Loadout:
Archer Toxicator Scarecrow Priest Hunter Phantom

Perks:
Rigged Gamble
Dreadeye Beamstrike
Role Swap
Crimson Catseye Ripoff

Timestamps:
0:00 - Black Dummy Positioning [0]
0:56 - Early Game [0-20]
9:59 - Mid Game [20-30]
13:02 - Firerate Achieved [25]
15:48 - Late Game [30-39]
20:23 - Final Wave 1/2 [40]
21:46 - Final Wave 2/2 [40]

Notes:
This glitch works by achieving a firerate which is below -100% as the developer did not set a firerate hard limit. Having a firerate below 0 is logically impossible so the value becomes nan/inf (not a number / infinite) which is why the toxicator gains a practically infinite firerate. (disclaimer: this is just my best guess, I am not 100% sure this is the reason.)

1. -50% Firerate Roleswap Debuff
2. -45% Bottom Path Westbound Station Debuff
3. -8% Scarecrow Debuff

The archers and hunters are used to compensate for the lost range due to roleswap and the priest to compensate for the lost damage from roleswap and provide hidden detection, to counter the soul bosses.

I believe that it could have performed a lot better and faster without the shockers and cryolators creating lag. It could have probably soloed both paths at once without any extra towers other than the buff towers that I placed.