In the new Operation 4 Escape Maps, you can find a Med Bay on select levels. These will allow you a one-time reprieve from your team wiping. They are a one-time use, as well.
The current map, The Malfunction, has one in the mess hall area. This can be found in the second half of the level, after the first safe room. You will exit the safe room and go down a set of stairs, then a long hallway. After this gauntlet, it will be in the bottom right corner of the map. It will show up on your map as the typical Health symbol. Activate it with X, much like you would a Venom Fan, then let your whole team die. You will respawn inside and pop your shiny new achievement.
If you are having trouble locating the Med Bay, this video shows the location of it. 11:42 for location.
Credit to Dicejunkies for the video!
EDIT: The Med Bay quite often does not work on Master difficulty. I have had it work successfully twice in the numerous Master runs on The Malfunction, so do not count on it for a real Master run.