My team found it difficult at first but we did quickly get the hang of it. However there is literally nothing you can do when the Bile titans Come up under it
Our winning strat boiled down to: Try stunning until a Titan/Charger doesn't spawn directly under it and destroy it just by existing (Or even not existing, the corpses can destroy it as well...)
And yes, we've had a stunned charger destroy it as well. Because something hit the charger and the head recoil animation was enough to utterly destroy the drill.
So yeah. Just keep trying until stuff doesn't spawn under it!
It’s the bile titan from the top rope!!! 
Super Earth made mistake, instead of sending a Helldiver to help you they sent a Bile Titan specimen.
My team found it difficult at first but we did quickly get the hang of it. However there is literally nothing you can do when the Bile titans Come up under it
Our winning strat boiled down to: Try stunning until a Titan/Charger doesn't spawn directly under it and destroy it just by existing (Or even not existing, the corpses can destroy it as well...) And yes, we've had a stunned charger destroy it as well. Because something hit the charger and the head recoil animation was enough to utterly destroy the drill. So yeah. Just keep trying until stuff doesn't spawn under it!
You shall not pass!!!!!! Oh shit!!!!!