Subset Games Forum

I'm still confused as to how to get this achievement.

The easiest way to get this is to get 2 pike beams (though 2 of any beam will work except the mini, and a pike beam and any other beam will work a lot of times too) and a laser that can take down 2 or 3 shields. Then find a ship with a small number of rooms. The two automated scouts work well, as does the small slug ship with the disconnected o2 and engine rooms.

Wait until all your guns are charged up and ready to go. Fire the laser and as soon as the shields are completely down, pause the game. Line up 2 beam shots so they'll go through every room in the enemy ship. Just start in the far left and right and head inward toward the cockpit for each of the 3 ships I mentioned above.

Then unpause, and reap the reward (the achievement)

Get 2 beams - preferably Pike. Encounter a small ship - an unmanned drone or slug interceptor for example. Target your beams so that every single room is hit. Keep in mind that beams must hit in a time period of 5 seconds between each other.
Example on beam placement. Alternative - get the federation cruiser with the artillery beam. Encounter THIS drone. The artillery beam will hit every single room granting you the achievement.