Obtaining Foundry achievements
From Team Fortress Wiki
Get one or more kills as all nine classes in one round.
How to obtain: The round will have to last a moderate amount of time, as it takes a significant amount of time to go into combat, obtain a kill, then switch classes nine times. To perform this feat most efficiently, change your class immediately after obtaining each kill.
| Raze the Roof|
Kill two people on the roof of the center control point in a single life.
Difficulty: Very Hard
How to obtain: Mobile enemies, such as Scouts, Soldiers, or Demomen, could make use of high ground to gain the advantage in combat. Still,it's not common for the enemies to jump in and fight at the platform. If they show up on the rooftop, either target them using one of the aforementioned classes or pick them off from afar as the Sniper.
| Real Steal|
Win a round in which the enemy team has attempted to capture your final control point.
How to obtain: After the enemy team has attempted to capture your last point, make a strong comeback.
| Terminated, Too|
Kill a player by pushing them into the cauldron fire.
Difficulty: Very Hard
How to obtain: The cauldron fire is located behind the final control point of either team. You need to be credited as having "finished off" an opponent in the cauldron fire. While any source of knockback can be used to propel an enemy into the fire, the difficult part is doing so while fighting over the final control point. The cauldron fire is higher than and significantly past the final control point, so it would be easiest to use the Pyro's compression blast to perform this feat.
| Dead Heat|
Play through a back-and-forth battle for 15 control point captures.
How to obtain: The two teams will have to be evenly matched and play offensively to perform this feat. The achievement will be awarded once 15 captures have been made.
| Cap Trap|
Kill an enemy who is capturing a control point with a critical hit.
How to obtain: Guaranteed ways to achieve critical hits include the Pyro's Backburner, the Engineer's Frontier Justice, the Sniper's headshot, Medic's Kritzkrieg, and the Spy's backstab.
| Foundry Force Five|
Play in a game with five or more players from your Friends list.
How to obtain: After gathering a group of friends, complete one full round.
| Two Minute Warring|
Be part of a team that wins within two minutes.
How to obtain: Coordinate with your teammates to begin a round strongly. Your team will almost always need to take the third, fourth, and fifth control points in rapid succession to obtain this achievement, as losing the initial battle over the central control point will cost too much time.
| The Crucible|
Win 137 Rounds.
How to obtain: This achievement will naturally be obtained after a very, very significant amount of time playing on Foundry.
| Five the Fast Way|
Capture the final control point within five seconds of your team capturing the previous control point.
How to obtain: As your team pushes up to the fourth control point, run ahead of them and prepare to immediately capture the final control point once they finish. The Scout captures points quickly and can run through the corridors of Foundry the fastest while the Spy can sneak past enemies and camp near the control point.
| Claim Jumper|
Capture a control point within 12 seconds after exiting a teleporter.
How to obtain: To expedite the process, you can play as the Engineer yourself, placing a Teleporter Exit close to a highly contested control point. If performing this feat on any but the last control point, wait until your teammates have partially captured the point before taking the Teleporter; capture times can be rather significant, especially if you have to spend time traveling from the Teleporter Exit.