C&C Generals Zero Hour: Infantry General Challenge 7 VS Toxin - Infantry Only

I have enough men to soak up ALL your toxins, and THEN still some more would be left to march into your base, not-doctor! Your chemical weapon production cannot keep up with the birthrate of China, fool!
I'm doing an infantry-only run with the Infantry General in the Generals' Challenge. The rules are as follows:
1. May only use Superweapons to counter enemy Superweapons. May not use Superweapons to destroy other enemy base buildings, WITH 2 EXCEPTIONS: against Boss general (Command Centers, Superweapons and Dozers) and against Superweapon general (all buildings).
2. May produce only 3 types of vehicles other than the Dozer and Supply Truck: Assault Troop Crawler, Listening Outpost, and Assault Helix. However, in the case of the former 2, all infantry must be dismounted before fighting, and in the case of the latter, it may only be used for transport and bunkers may not be installed.
You may review the rules anytime in the playlist description.