Dive for the very first time.

Use a blast capsule

Have at least 8 insects in the Sandbox

Set the sun on the horizon

Use terraformation in God mode

Tie a balloon to a Predator

In Multiplayer, as a squad leader call in 2 reinforcements in a round

In Multiplayer, kill 30 enemies

In Multiplayer, build 10 fortifications in a round

In Multiplayer, have 3 squad members spawn on you

Clear any level on expert difficulty without any modifiers.

Kill 50 enemies with the Assault Rifle.

Eliminate 5 opponents with pistols.