Head roles should be unconvertable

[Flareguy]

Captain, HoS, and (not really now but probably in the future) HoP are WAY too powerful if converted by a subverter. They just have so much inherint leverage from both their gear & implicit powers that it makes having them on your side a near-garunteed win.

Security is probably fine to remain convertable, since there's not that much inherint trust in them, and it leads to them being very high-value targets, which is pretty interesting.

[K-Dynamic]

We could tie it to mindshields, then remove mindshields from security so they can be subverted.