Campaign: find 5 collectable weapons

Campaign: finish Cold War

Campaign: 50 kills with assault rifles

Use planks and sticks to make a sword.

Relieve a Blaze of its rod.

Construct a Dispenser.

Acquire diamonds with your iron tools.

Smelt an iron ingot.

Construct a furnace out of eight cobblestone blocks.

Construct one type of each tool (one pickaxe, one spade, one axe and one hoe).

Use planks and sticks to make a pickaxe.

Harvest some leather.

Attack and destroy a monster.