**This achievement is MISSABLE**
Playing as any killer, close the hatch 30 times.
NOTE:
The hatch spawns, when only 1 survivor remains in the trial - Either because everyone else died or escaped.
The hatch emits a distinguishable sound, that can help you locate it.
When you stand on top of the hatch, you can interact with it, in order to close it. (Victor, the little guy from The Twins, cannot close the hatch)
When a hatch is closed, it can be opened by any survivor using a not-broken key.
This cannot be done in "Kill your Friends", but it can be done in "Survive with Friends".
This can be done on any map.