Here is the full list of all 14 Dustoff Heli Rescue achievements.
Earn golden medal on every mission
Complete the last mission with the M60 gun
Earn at least silver medal on every mission
Complete every mission
Die within the first 4 seconds.
Spin with the Scout twice at the same time
Spin with a full Scout
Save Rambo
Save 200 soldiers
Save 100 soldiers
Save 50 soldiers
Pick up 20 soldiers without landing
Survive hitting a tree
Find Buddha