The Two Cities Update Title update for Team Fortress 2 has 21 achievements.
Win a round in which the enemy team has attempted to capture your final control point.
Win 139 Rounds.
Win 140 Rounds.
Win 141 Rounds.
Wipe the other team with 12 or more players on the server.
While rocket jumping, use a rocket to kill a rocket jumping enemy who also kills you with a rocket.
Kill 15 enemies in the rafters above the central capture point.
Kill a tank before it crashes through the barrier in Rottenburg.
Play an advanced wave in Rottenburg without the bomb entering the town.
As a team, pit 10 guys in a single wave in Mannhattan.
Ooohh Ooh Ahh Ahhhh! ...in Mannhattan
Play an advanced mission without losing a single gate in Mannhattan.
As a team, kill 50 stunned radiowave robots in an advanced mission in Mannhattan.
Kill 500 gate crashing robots in Mannhattan.
Kill 5 robots in a single explosion from detonating a sentry buster.
Pit 100 enemies in Rottenburg.
As a Sniper collect $500 in a mission without running over the currency packs.
Block 5,000 damage with the shield as a Medic in a single life.
Use one ÜberCharge to quickly revive 2 teammates within 5 seconds.
Kill 5 enemies with a single rocket while upgraded with rocket specialist.
Stun 50 robots while upgraded with rocket specialist.