In ArmA and most video games, models seen from far away are swapped out for a lower resolution one that, from a distance, looks pretty much the same as the original.

However, the Mammoth Tank completely lacks an LOD model. So when you view it from far away, the tank completely disappears. This seemingly small problem makes the Mammoth tank completely unusable as an enemy for a mission, because all of your enemies will be invisible unless you are close to them. If you are that close to the Mammoth Tank, you're already doomed.

For example, pilots can't see the tank at all, and therefore cannot conduct air strikes upon it.

I urge the mod creator to prioritize fixing this.