Labor dispute over employment termination and cost allocation in revision proceedings

The Federal Labour Court (BAG) dismissed the plaintiff's revision, thereby upholding the lower court's judgment and leaving the defendant's position in force. The dispute concerned a labour law matter where the plaintiff challenged a lower instance ruling, likely involving an employment dispute that was fully litigated through to the final appellate stage. The court's decision resulted in a complete victory for the defendant, with the plaintiff bearing the costs of the revision proceedings. The specific legal norms or doctrines relied upon to reject the plaintiff's claims are not detailed in the provided operative text, but the outcome reflects the application of the relevant German labour law standards reviewed by the first senate of the BAG.