Follow the route shown in the video below to farm high-end (gold) Division Tech, which is required for all Dark Zone Level 31 weapon and item blue prints. This route begins in the safe room in the middle of DZ 04. You can loot up to 23 Division Tech boxes approximately every 10 minutes using this route. Note: If someone else has already looted a Division Tech box, it will not give any Division Tech for a set amount of time. The boxes respawn every two hours on a server after being looted. To get onto a different server to immediately loot more Division Tech, either restart the game or join a different player or friend's game. You can also increase the amount of high-end Division Tech you get from the boxes by having a higher scavenging percentage.