Lithuania is a conquered province of the Soviet Union. It was forcibly annexed by Stalin on the eve of the Second World War at a time when it exhibiting pro-Nazi sentiments. The Lithuanians never consented to be governed by the Soviet Union and have a valid moral right to resist Soviet authority. Gen. Jaruzelski's regime was forcibly imposed on Poland in 1945 by the Red Army. Taking up arms against intolerable political power is not a simple matter as any serious revolutionary will testify.
Private individuals clutching guns are powerless in a contest with political authority.
A revolutionary movement has to concentrate forces in a revolutionary army which then becomes a target for attack. In a genuine revolution, it does not matter if the state has the revolutionaries' guns on a list. If the revolutionaries prevail in armed conflict, they get the list of the loyalists' guns. The list is immaterial. The poor slob of neutral or suspect commitments is likely to be shot by either side with no appeal to justice.