Here is the full list of all 9 Radar Warfare achievements.
Submit a game to the leaderboards on endless mode.
Win the game without using a single missile.
Win the game without losing a single life.
Win the game using just the third ship.
Win the game using just the second ship.
Win the game using just the first ship.
Win the game. Save the world.
Beat the second level of the game.
Beat the first level of the game.