Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Admiral	Rank up to Admiral by playing multiplayer.
Aggressor	Defeat Insane AI in Skirmish mode without using shields.
Air Superiority	Defeat the enemy airship boss in Campaign mode.
Captain	Rank up to Captain by playing multiplayer.
Commander	Rank up to Commander by playing multiplayer.
Constructor	Build 250 buildings.
Doomsday	Win selecting warheads as your only attack building against insane AI.
Ensign	Rank up to ensign by playing multiplayer.
Grand Admiral	Rank up to Grand Admiral by playing multiplayer.
Lay Waste	Destroy 250 buildings.
Lieutenant	Rank up to Lieutenant by playing multiplayer.
Naval Destruction	Defeat the enemy warship boss in Campaign mode.
Reflection King	Reflection your laser off two enemy shields to damage another enemy building.
Reflection Pro	Reflect your laser off an enemy shield to damage another enemy building.
Robot Wrecker	Defeat the enemy robot boss in Campaign mode.
Shields Flanked	Damage Shield Towers 5 times by shooting around their shields.
Upgrader	Upgrade buildings 10 times.
Vice Admiral	Rank up to Vice Admiral by playing multiplayer.