So instead of clogging the main update thread with achievement related stuff, let's guess at what they are here.
http://www.teamfortress.com/scoutupdate/energydrink.htmSince all we have to go in is the icons, here are my predictions:
"A Year to Remember" - Capture x number of Control Points
"I'm Bat Man" - Kill x people with your bat
"Artful Dodge" - Use 'Bonk!' to dodge x number of bullets
"Moon Shot" - Hit a heavy in the head with a baseball bat from a beyond a certain distance
"Batter Up" - Jump 4 times and hit someone with a bat (?)
"No Hitter" - Capture the intelligence without doing any damage
"Batting the Doctor" - Kill x medics with your bat
"Out of the Park" - No idea
"Beanball" - Hit another scouts baseball with your bat (?)
"Pop Fly" - Something with explosions
"Belittled Beleauger" - Something with the intelligence
"Quick Hook" - Something on cp_well?
"Block the Plate" - Block x captures
"Race for the Pennant" - Be the first to the intelligence/control point (?)
"Brushback" - Stop the cart by stunning someone moving it
"Retire the Runner" - Use your whole can of 'Bonk!'
"Caught Napping" - Kill someone who is stunned
"Round Tripper" - Capture the intelligence 3 times in one round
"Closer" - Break x enemy teleporters
"Set the Table" - Capture x control points
"Doctoring the Ball" - Kill x people while being healed
"Side Retired" - Capture all control points without losing any
"Dodgers 1, Giants 0" - Kill x heavies
"Stealing Home" - Capture the last control point within x seconds
"Fall Classic" - No idea
"Strike Zone" - Stun x pyros
"First Blood" - Kill x people while ubercharged
"The Big Hurt" - Stun a medic healing a heavy (?)
"First Blood Part 2" - Kill x people with your bat while ubercharged
"The Cycle" - Die in the air, on the ground, and underwater
"Foul Territory" - (If stunning someone knocks them back) Knock someone off a cliff to kill them by stunning them
"Triple Play" - Capture all 3 control points in a row
"Gun Down" - Kill x people with your pistol
"Triple Steal" - No idea
"If You Build It" - Destroy x sentries.