Cadet - 5 points
Complete a game of Dogfight
Hero - 10 points
Earn gold medals on all Defense Missions (Headquarters, Big Guns, and Reconnaissance)
Professional - 10 points
Earn gold medals on all Assault Missions (Bully Fight, Zeppeligeddon, and Bombs Away)
Technical - 10 points
Earn gold medals on all Navigation Missions (Ring Race, Birds of War, and Follow the Leader)
Big Guns - 15 points
Earn 100 kills from the Turret
Flawless - 15 points
Complete any mode with 20+ kills and no deaths (Multiplayer Only)
Helping Hand - 15 points
Earn 250 assists
Sky King - 20 points
Earn 25 wins (Multiplayer Only)
Weaponeer - 20 points
Earn 25+ kills with every secondary weapon
Classic - 25 points
Earn Doghouse reward 10 times (Multiplayer Only)
Veteran - 25 points
Earn 10,000+ points (Xbox LIVE Player Match Only)
Flying Ace - 30 points
Reach Flying Ace Status (Xbox LIVE Player Match Only)
And I'm not sure what you mean by a "kid's game" being supposed to have easy achievements. Do kids suck at games?
Although I do wish that there would have been atleast one for completing the campaign.