No not when theyre inside mid itself in a large obsidian ball that cannot be broken becausenits a part of the mapMTbh its always easy to kill campers because of bow (Not a bow spammer personally but just an opinion, If they have themselves in obsidian, You must get TNT + Power 5 + God gapple (2 or 3) and some regular gapples with obsidian to cover yourself. Get in the shelter and start bowspaming like you never did :p Use tnt too.
(The area doesn't need to be covered in my opinion its just fine to play if you rush for eggs to make it easy.)