Kranborg Castle & Militia Bunker (Denmark)
-Reach de end of the sewer on Coppenhagen, you will see a tunnel with broken metal bars, enter it, follow the small cave, and find the ladder, u will be on the empty barricaded house. (north of coppenhagen)

Crash Site (UFO) (Denmark)
-An island between Hansholm and Lihme

Military Supply drop Outpost (Germany)
-follow straight the trail from Cuxhaven

Pillboxes
around the warzone area near Cuxhaven

Crash site (plane) and The Cave
- both near Icestation (to the north)
pass through stone ruins straight, you will see a cave
pass through stone ruins, hit the left, you will find crash site

Hidden Tent (Sweden, South of SCP-7 facility)