The Escapists 2

This achievement requires you to escape all Classic prisons. These prisons include

1) Centre Perks 2.0
2) Rattlesnake Springs
3) K.A.P.O.W. Camp
4) H.M.P. Offshore
5) Fort Tundra
6) Area 17
7) USS Anomaly

If you want this achievement:

You must perform one of the various unique prison escapes

Listed below is the link on how to escape each prison:

1) Centre Perks 2.0 -
https://theescapists.gamepedia.com/Center_Perks_2.0

2) Rattlesnake Springs -
https://theescapists.gamepedia.com/Rattlesnake_Springs

3) K.A.P.O.W Camp -
https://theescapists.gamepedia.com/K.A.P.O.W._Camp

4) H.M.P. Offshore -
https://theescapists.gamepedia.com/H.M.P._Offshore

5) Fort Tundra -
https://theescapists.gamepedia.com/Fort_Tundra

6) Area 17 -
https://theescapists.gamepedia.com/Area_17

7) USS Anomaly -
https://theescapists.gamepedia.com/U.S.S._Anomaly

Listed on each site is the Perimeter Breakout escape, along with the unique single player and multiplayer escape. You only have to do one of the escapes listed, but you will not unlock

Unless you do either the unique single player or multiplayer escape

Also, the site shows the schedule for each map, incase you need to plan accordingly