Defend Pump Station mission from Clear Sky

[Former user]

When asking Cold for missions you get a "Defend the Pump Station" mission which seems to be missing it's english strings, so you get "mar_smart_terrain_base_stalker_leader_marsh_task_4_title" for some peolple the missions works fine, but for others it softs locks the mission because when you talk to the commander and he tells you to get in the tower, the mission doesnt updates and all you get is "Get to the pump station" again. There's seems to be no way to progress from here.