2nd campaign egg destruction
The egg nests are found only in campaign 2. Save up enough energy to use the orbital laser. Once that is done, wait for a boss to come up. Use the orbital laser immediately when the egg is about to hatch. During a boss wave, when you use the orbital laser, the first thing you should target is the egg. Set the laser crosshairs on the egg nest before the laser fires. The egg will die in a half a second if done correctly. Then kill the boss aliens. If you use the orbital laser before a boss arrives, you'll most likely regret it.
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