I believe I may have failed to put my point across correctly and as such became misunderstood. I am aware that you are able to lose nearly all countries to a pact and still continue, however my question was regarding the game over.
If I ran 3 or so months with a -1000 odd score. The funding would stop entirely and the Xcom project ceases and as such you get a game over.
My question was if it is possible to have the ability to make it so that, if it came to it, and you ran 3 or so months with a super low score and as such got "Cut off". But be able to have it so that instead of having a game over, just make it so that all funding ceases entirely and you are left entirely to your own devices becoming somewhat of a vigilante type of organization depending entirely on trying to make ends meet via self funding, be it manufacture or raids on the enemy ships and such.
Hopefully that clears up what I meant. If not I shall try and reword it more clearly.