BIG PHARMA: Assist a Heavy in killing 20 enemies whitout dieing.
Good. 30 kills as a heavy is nearly impossible.
YOU LL FEEL A LITTLE PRICK: Assist a Scout in killing 3 enemies by übercharging him.
Well it's easier but it still means that people are going to be ubering scouts just to get kills when you should be using the uber to take out sentries.
AUTOCLAVE: Assist a Pyro in setting 5 enemies on fire by übercharging him.
Meh. 8 was totally do-able.
BLUNT TRAUMA: Assist a Heavy in knocking out 2 enemies by übercharging him.
I've punched out 4 people in 10 seconds before, but I wasn't ubercharged so they thought they could beat me. If I'm uber'd and try to punch, most people just run away. 2 is a lot more attainable.
MEDICAL BREAKTHROUGH: Assist a Demoman in destroying 5 enemy buildings by übercharging him.
This was the biggest change needed as 8 buildings was completely impossible. Demo man is my primary class and my most destructions in one life was 9 and took a lot longer than 10 seconds.
CHIEF OF STAFF: Heal a total of 1million hp.
Still dumb but at least attainable. I calculated that it would take me something like 200 hours of medic play time to get 10 million at my current healing rate (admittedly not the greatest)
I still disagree with using achievements to unlock new weapons.