In any FSO, unless its written right in the design, you may always re arm and re fuel at any friendly base. I have seen a few emails and PMs, asking about that in the last few frames. "Active bases" describles the bases your side may initially roll at, with the others having a/c disabled, but thats just on the initial roll at T+0, after you are up, you may land at any friendly base.
Some FSOs may have some restrictions, but if they do, you will be made aware of them.
For info.
