Hello and welcome to Pbreezey's guide for The Division Achievement "Marathon"
SO! There are 14 Safe Houses for you to unlock. They are (in order of level suggestion):
1. Kerman Station (Hudson Yards; lvl 5-9)
2. The Cavern (Garment District; lvl 5-9)
3. The Meat Locker (Tenderloin; lvl 9-12)
4. Dante's Run (Hell's Kitchen; lvl 10-13)
5. Autumn's Hope (Times Square; lvl 10-13)
6. Wolves Den (Clinton; lvl 14-15)
7. Madison's Stand (Flatiron District; lvl 15-16)
8. The Last Call (Gramercy; lvl 16-18)
9. The Ward (Stuyvesant; lvl 18-19)
10. Southpaw (Kips Bay; lvl 20-23)
11. The Grindhouse (Murray Hill; lvl 24-26)
12. The Firewall (Turtle Bay; lvl 27-28)
13. The Crypt (Midtown East; lvl 28-30)
14. Camp Clinton (Piers South; lvl 32-34)
Tricks for Getting to Safe Houses Safely
1. Use your high level friends. I tested this method out and got the achievement for some friends and it works perfectly. If you have high level friends, or friends that have already discovered all of the Safe Houses, join a group with them and have them fast travel to each Safe House you have not yet discovered. Once they are there, simply find them on your map and choose to fast travel to them. You will then have full access to the Safe House with the ability to fast travel to it, use the vendors, mission boards etc. It took maybe 10 minutes and I was able to get this achievement very quickly for them.
2. Use missions to put you in the area. Whenever you join matchmaking for a mission and join a group, you are able to fast travel to the group leader who should already be at the mission location. Once you go through the mission and complete it, stay in the group and use your location for easier access to the Safe House. For example: The Murray Hill Safe House, The Grindhouse, is right next to the mission Queens Tunnel Camp. Join matchmaking for this mission, complete the mission, then set a way point to the Safe House which is right around the corner. If nothing else this saves you running from the next closest Safe House and avoids more baddies. (Obviously for this method you need to be the appropriate level to complete the missions you join up for)
Some other tips:
- Don't always follow the suggested routes on your map. When you set a waypoint to a the next Safe House, you will be given the orange line leading you to your destination. However, I found that this line tended to take me right past missions, encounters, etc. that had a lot of bad guys outside and thus led to me dying. I found that by sometimes taking a different course from the suggested route I was able to safely get to the Safe House and avoid bad guys.
- Do or do not use the Dark Zone. Initially there had been speculation that you had to use the DZ to get to the Crypt. While this is not the case, you may find it *easier* to run through the DZ to get to some of the Safe Houses than running through regular Manhattan. You just need to do what works for you. Trial and error. I personally ran through Manhattan for all Safe Houses and never entered the DZ, but if you do it and it works for you, drop me a comment below.
If you have any questions or comments please let me know. If you're going to downvote, please comment first and give me a chance to improve whatever issue you may have.
Good luck and happy hunting!