I think no....
But in my case I simply could delete the SCORE tag couse the base tower has no weapons and is not really important if it will not be counted.
But who knows... maybe there's a possibility of modifying the SCORE thing so that it will subtract 1 from the SCORE list while you play the game, e.g. a dummy object which will be spawned at the same time and subtract this point of the other unit again so that it is +/-0
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