Feel free to add remove or comment on my idea

On the choose your weapon screen you add a new one... pickaxe
They only have a pickaxe , pistol, and the block tool
their blocks are 5 times stronger
they can destroy blocks faster
they run faster?
they can carry more blocks?
they get more blocks, per block they destroy?

(completely different but might help if they grief or not)
players choose a captain in the beginning, or whoever has highest score gets captain next round

captain does radio calls, and can decide who ends up being a builder
captain can remove builders anytime they want
after captain removes builder you get a vote if you wanna undo what he has done for the past couple minutes