2 Teams. RED vs. BLUE.
Your goal? Deactivate your enemies' beacon. Note that destroying a single block of the beacon will deactivate it.
How are you going to do that?
TNT.
Three Shulker Boxes for two playstyles:
Assault and Cannon.
Want to do a sneaky TNT attack? Grab an Assault box and both Toolboxes, build over the wall, and send TNT flying to their base!
Prefer to make a powerful TNT Cannon? Grab both Toolboxes and build the most powerful cannon you can get!
A word of warning... You must master the Art of TNT Cannoning. Otherwise... I don't promise you'll reach your targets from your base.
Two solutions:
_Take a big risk, get yourself much closer, and build more cannons there.
_Master the art of controlling the blast point, TNT Spread and such. Do not let yourself be discouraged by the sheer distance between bases!
You'll notice you've won if you cannot see your enemies' beacon beam.