As Jtwift said you get the same base as an FO.

Interestingly with the vacancy bid open now they have a new process for those folks to bid for Laterals/upgrades. Don't figure any of them will be able to hold 756 Captain, but that has gone super junior ( I think even 1 unfilled once) so who knows.

For vacancy bidding now, any pilot that got a Captain slot as a new hire will be able to put in lateral requests for a different base as an FO and lateral/upgrade requests for a different base (or upgraded equipment) for their eventual CAP position.

So, let's say somebody who got EWR 737 Captain as their award in new hire really wanted IAH, but ORD would also be better than EWR. Since they are originally trained as a EWR 737 FO, they would be able to have a bid that shows:

IAH 737 CAP
ORD 737 CAP
IAH 737 FO
ORD 737 FO

Their FO lateral requests would be evaluated seperately from their CAP requests. They could theoretically get two "awards" on the vacancy bid, one for the remainder of their time flying as an FO and one for their eventual CAP assignment.

With the movement we have going right now, the folks that take a Captain assignment in new hire class may not ever fly as Captain out of the original base assigned, as many/most other bases we have are getting new vacancies assigned every month. Heck with the growth of MCO/TPA you may have some of the new hires from last week that got Captain slots flying as junior reserve Captains there by this time next year! While I wouldn't put any money on that, there has been a lot of movement in the last couple years that I would have gladly bet against two years ago, so who knows anymore!