INFO:
At time of posting, this is (in my opinion) the safest way to hack Arma 3. Until BIS and BE up their speed this method will always be undetected. However, I cannot predict the future, and therefor nobody is responsible if you are banned but yourself. They will likely try to detect the hack, or they could actually try to fix the problem, that is for them to decide or you to find out. You have been warned. Enjoy.
INSTALL:
1. Download Griff-Hider. Put it anywhere on your PC.
2. Download this and put 313.sqf into your Arma 3 folder
Code:
C:\Program Files (x86)\Steam\steamapps\common\Arma 3
3. Rename 313.sqf to something random.
4. Download this and put poop.pbo into your addons folder
Code:
C:\Program Files (x86)\Steam\steamapps\common\Arma 3\Addons
5. Rename poop.pbo to something random.
HOW TO USE:
1. Open Arma 3 to the Main Menu. Do not join a server.
2. Open Griff-Hider as administrator (not required but do it anyway)
3. Click "List PBOs"
4. Select poop.pbo (or whatever you renamed it to) from the drop down list.
5. Once you have it selected, click HIDE. (you can click it more than once, but don't finger bang it)
6. It should confirm your PBO has been hidden.
7. At this point you should CLOSE Griff-Hider. Es Muy Importante!.
8. Join a server, all servers should have yellow or green icon, if the servers have red icons, it means your addon(s) were not hidden successfully. (see troubleshooting below )
HOW TO REMOVE:
Remove 3 files added in steps above.
TROUBLESHOOTING:
1. Make sure devcon and any other custom .pbo files are removed from your addons folder, one way to check is to join a server, it should list all the PBO/Addons that are not accepted by the server.
2. After removing all old pbo/addon files, poop.pbo (or any other addon you wish to use) should be the only custom addon remaining
3. If the only addon that servers are rejecting is poop.pbo. I found that whilst using Griff-Hider, if I click "Hide" more than once, it would have better results. You can continue to try to hide your pbos until servers display a green or yellow icon, one way to test this is to keep returning to main menu and then back into multiplayer, if the hide was successful, servers would then allow you connection. Always close Griff-Hider before joining a server lobby.
As ever, if this helped, a thanks or some rep would give me a boner. It also makes people like @Confined mad at me Thanks to @Riddick for fast approvals, he is on his game as ever.
Credits to @griffin02 for free hacks!!!