Ask a Warrior Thread.

Fixed.

Hm, though I'm considering getting MW19 after Rush, or should I just do Achilles right after Rush?

It depends, you could use MW as a damage input. Which would then make it MW -> Rush -> Achilles. But I don't know your range, funding, % str, or anything.
Personally, if MW would help you out in damage, go for it first. (MW -> Rush -> Achilles)
If you feel as if either it doesn't help you, or you always have MW20 when training with someone then go for Rush -> Achilles -> MW.

Either or, skip Hex. It's not really that helpful.