I'm sure most of us realize this, but this is one of the types of mods you MUST be in port to deactivate.

If you start a patrol with it active, then in mid patrol think to yourself, "Self, I think I want a reason to spend my promotion points!" and uninstall it, your save games
will CTD.
Not that any of you would ever try to uninstall a key mod in mid patrol.

I know I didn't, a little birdy told me that this would happen...
Also it should be mentioned that once you've installed this you MUST keep it installed for the entire campaign. If you remove it while in port and try to load a game, it'll CTD.