Dead by Daylight

This is more of a solo strategy than a guide since the achievement is pretty straight forward.

This achievement is going to be very difficult at higher ranks. I suggest going for this at the lower ranks. The reason why you want to try this at lower ranks is due to that fact that you will likely be paired with a bad killer who may not know what he is doing and this is key since you do not want the killer to close the hatch at the end of the game.

Perk you should be running while attempting this achievement Self Care, Bond, Left Behind & Wake Up and a toolbox

When you attempt this achievement (whether it be at high rank or low rank) you want to focus on gens. At lower ranks, you may have teammates that dont know how to hit skill checks so do not go and rescue you teammates of the hook, leave it to your teammates to take care of that. You want to time it so that you dont finish the gens too fast. I had issues in a few games where i would do all but one gen and run the killer to my teammate, just to have my teammate locate the last almost gen and pop it before the killer can get to him. If your bringing a toolbox dont use it until the last gen. If your teammate dies and you happen to be the last one left, using the tool box in combination of the Left Behind perk, you should be able to knock out that last gen extremely fast.

Once you complete the last gen head to an exit gate (preferably farthest from the gen you just popped as the killer will likely be heading in your direction). This is where your Wake Up perk will come in handy, you will be able to open the door 15% faster(with the Tier 3 perk). If the killer is making his rounds, he will check the door and then look for the hatch (if he hasnt shut it yet). Once he leaves your gate you pretty much have it in the bag unless he has something that can one hit you like NoED .

With all that being said good luck. If there is anything that I can add let me know. I solo farmed this for 2 hrs so hopefully with a buddy it should be a lot easier.

This achievement isn't quite as hard as you might think. You don't have to finish the last gen per say, just any gen after the third survivor dies but before the killer can close the hatch and you can accomplish this by getting a gen to 99 or saving a Brand New Part and trying to rush the gen when your last team mate is being chased. You could also SWF to coordinate that bit. If you manage that, then wait for the killer to close the hatch and leave through an exit gate and you'll get it. I recommend Wake Up and Spine Chill as they'll help you open the gate just a bit faster under pressure but those few seconds can be enough.