might be too similar to the brute rush, but:

Brute rush + jackal ant-infantry support

BO - WH, T, WH, WH, H

as soon as your temple is up que up brutes,ignore the H part for now. once the temple is complete you will have enough for the last WH. due to the supplies from your chieftan/chopper and WH you should be able to get the hall instantly while still having a constant supply of brutes. train jackals whenever you have enough money to train one and not distrupt your brute production. you should attack once you have 2-3 brutes.

the jackals are for covenant or nyone making infantry. it also limits your oponents countert - jackals and brutes will kill the flamers much faster than just brutes and they'll be lucky to even reach your units, air is soft countered by your infantry (if they can get it), and your  chieftan/brutes kill tanks easily.

 This also works with wraiths, grunts and hunters, though you will not be able to get a constant supply of wraiths/(possibly hunters) as well as brutes.

Brute rush + wraith support

BO - WH, T, WH, WH, F