How do you unlock the Specializations?

Games Other Halo
1

^

2

Reach SR50.

3

I’m going to have the reach SR50 then? Okay. Thanks.
Will that also unlock both or just one?

4

you unlock two if you have standard and can only chose one then rank up 10 levels to pick another one…to get all specializations you must have early access or wait november 20th to get code to unlock them all