whenever i finish my 4th mission chain its just goes to the start of the 4th one
There are only 4 mission chains. If you regularly complete at least one mission per day, you'll remain in the 4th chain. If you skip one day, you'll go to the start of the 4th chain. And if you skip 4 days in a row, you'll have to start from the 1st day of the 1st chain.
so there is no 5th mission chain
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