The
FAQ states...
Q: Must a Grey Hunter unit that consists of ten models take the first
special weapon at normal points cost in order to take the second free
one? (p26)
A: Yes.
This makes it clear you can't get a free weapon at 10 models without buying one first. But since the list goes:
...one of the following:
Flamer free
Melta 5
Plasma 10
Can the 2 weapons I select be different?
Such that:
1. Could I take a melta for 5
first for free, and then for my 2nd weapon get a plasma free?
2. Could I take a flamer for free
first for free, and then for my 2nd weapon get a plasma free?
3. Can I not have a grey hunter squad with 9 guys with bolters and 1 guy with a free plasma? It would have to be either:
a. 8 bolters, 1 special (any) for cost (even a free flamer), 1 plasma for free? ...or...
b. 9 bolters, 1 plasma at cost (10).