Helldivers Objective - Perform Geological Survey (Bugs)
7With Bugs, these are toughest on Snow maps where your movement might be restricted.
Your biggest threat will be either Behemoths or Impalers. If any Behemoth gets too close or spawn right under it, your only option is to Stun using RX-1 Rail Gun, Stun Grenades or Airdropped Stun Mines. Killing a Behemoth that has gotten too close requires options that hurts it while not hurting the drill. For Impalers that spawn off screen, it is important to have formation around the Drill, but not too close that any tentacles that sprout are within striking range of the Drill. Use options like 'Sledge', Railcannon Strike, or Commando to take out Impalers that you can't see, but don't leave visible range of the Drill itself. Prioritize shooting away any tentacles that sprout too close over anything else.
This video contains 3 Perform Geological Survey objective completions that I feel demonstrate the guidance I have shared above.
Note: If you are getting overwhelmed or playing solo and unable to keep them suppressed for full duration, you should know that unlike Escort Convoy and Activate and Defend Launchpad objectives you are allowed to get far away from Perform Geological Survey objectives even after activated. In fact you can use this tip to move between multiple Drill sites and just do next sequence of codes and then run away quickly should a scout party show up and alarm. As long as you get far enough away quick enough it will remain safe and you can return to it and repeat similar strategy until the 5 sequences are completed.