Problem was it was an actual turbine. Which is a series of gears turning. The turbine we had to damage was the bottom part of a system of turning gears. There were upper parts that were similar. Then there is the chance that a specific order or type of damage was required. Like throwing a grenade down a shaft in d1. After destroying the first one it was super obvious and pretty easy. But without anything being highlighted and no damage numbers it was trial and error. No big deal. But the mission was so specific, cut scenes, ghost and npc were so specific it just stopped the momentum and fun. Wasn't hard. Just not great story telling.