Here is the full list of all 18 Eggs 1942 achievements.
Operation Egg completed!
You cracked an egg. Wow!
You got a 5 crack combo!
Saving Private Egg completed!
The Egg Invasion completed!
Egg Raid completed!
The Battle for Egg Island completed!
You cracked 100 eggs!
You cracked 500 eggs. That's a big omelette!
You cracked 2,500 eggs. Blimey!
You cracked 5,000 eggs!
You cracked 1,000 eggs!
You got a 15 crack combo!
You got a 25 crack combo!
You got a 50 crack combo!
As a Scout Egg you activated the Speed Shield for over 2 seconds!
As a Scout Egg you activated the Speed Shield for over 5 seconds!
As a Scout Egg you activated the Speed Shield for over 10 seconds!