Necrotic Nosphe.1859

Hello,The quest "guard of the armory" does not work.Following the explosion of the first tank by a mine, the repair does not start.I can access following the mission but all the NPCs are KO and the tanks still in the same place.The enemies appear to infinity and the NPC Balista does not react (when I revive it) while I am asked to speak to him to advance in the quest.Thank you for fixing this problem which prevents me from advancing in the game.