Safe Haven

SAFE HAVEN IS YOUR NORMAL CARDBOARD BOX FACTORY

...with a giant robot

and deadly poisonous hamsters and possibly SQUEAKY SAND. Because innocent cardboard box warehouses has hi-tech security systems like that (at least it's not owls. God, that would be completely stupid)

More seriously, Safe Haven is the name of the cardboard box factory that Big Boss took over for his main uses, mainly to build Metal Gear and a base to launch attacks out into the multiverse on while also protecting the city. Currently, Dr. Nicholas Rush is in charge of operations with Dr. William Flemming as his second in command. Due to Rush being locked up because of general insanity and piloting Metal Gear RAY into an attack on the city, Flemming has taken on all of the duties Rush previously carried out in regards to Safe Haven.

The most well known projects that have been worked on in Safe Haven are Metal Gear KODOQUE (which has been destroyed in battle with Metal Gear RAY, Rush's pet project not affiliated with Safe Haven) and Rush's apartment built in the design of the Ancient starship Destiny.