I got most of my Pyro achievements from playing normally. The medic ones are the worst of the bunch in my opinion. These heavy achievements seems to be similar in style to the Pyro achievements.
Iron Kurtain: Take 1000 points of damage in a single life. Achieved by playing normally
Show Trial: Kill an enemy with a taunt. Meh...
Redistribution of Health: Heal 1000 damage with med-kits in a single life. Achieved by playing normally
Rationing: Kill an enemy with your shotgun while you're out of minigun ammo. Achieved by playing normally
Soviet Block : While invulnerable and on defense, block an invulnerable enemy Heavy's movement. Achieved by playing normally
Photostroika: Provide an enemy with a freezecam shot of you taunting while invulnerable. Not sure I would taunt instead of continuing to shoot
Rasputin: In a single life, get shot, burned, bludgeoned, and receive explosive damage. Achieved by playing normally, albeit probably rare?
Konspicuous Konsumption: Eat 100 sandviches. Achieved by playing normally (if it's replacing the shotgun as rumored)
Crock Block: Survive a direct hit from a critical rocket. Achieved by playing normally
Krazy Ivan: Kill 100 enemies while both you and your victim are underwater. Probably a cp_well thing, just like one of those Pyro achievements. But meh... I haven't been much in the water when I've played heavy
This comment was edited on Aug 18, 18:43.