Initiate your first nuclear chain reaction.

Reach a confirmed k-effective of at least 1.0.

Consume at least 20% of the initial fissile inventory in one run.

Complete the final Tsar Bomba directive.

Start a supercritical chain reaction that ends below 0.05 kilotons.

Complete your first directive.

Complete 10 Directives.

Produce at least 0.10 kilotons of fusion yield in one run.

Reach 1 Megaton total yield.

Complete Compression Qualification.

Reach a confirmed k-effective of at least 1.2.