Two things you will need to do -
1. Enable context window to show " OPEN COMMAND WINDOW HERE " when holding shift and right clicking system folder *******SKIP THIS STEP IF YOU HAVE OPEN COMMAND WINDOW ACTIVATED *****
2. using a command line to compress your maps
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Step one :
Enable context window to show " OPEN COMMAND WINDOW HERE " when holding shift and right clicking system folder
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Adding ‘Open command window here’ Option to the Windows 10 Context Menu of a Folder
Step One: To enable the Windows 10 open command prompt here, first press Windows key and + R from the keyboard to open the Run command. Type regedit and then hit enter from the keyboard to open the registry.
Step Two: Go to the following path:
HKEY_CLASSES_ROOT\Directory\shell\cmd
Step Three: Right-click the cmd key. Scroll to Permissions and then click it.
Step Four: Click Advanced.
Step Five: Click the Change link.
Step Six: Type your user account name and click ‘Check Names’ to verify it. Click OK when you are done.
Step Seven: Check ‘Replace owner on subcontainers and objects’. Click Apply and then OK.
Step Eight: In ‘Permissions for cmd’ window, select the Administrator account. Check Allow for full control option. Click Apply and then OK.
Step Nine: Inside the cmd key (right window), right click HideBasedOnVelocityId and then click Rename.
Step Ten: Rename the DWORD from HideBasedOnVelocityId to ShowBasedOnVelocityId, then hit Enter from the keyboard.
You are done. When you press shift from the keyboard and then right-click on any folder, you will have the ‘Open command window here’ option on the Windows 10 Context Menu.
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Step Two : Compression commands
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Place all map files C:\Program Files\Steam\steamapps\common\Rainbow Six 3 Gold\system
then
Goto C:\Program Files\Steam\steamapps\common\Rainbow Six 3 Gold
Hold Shift Key and Right Click " system folder
Select " open command window here " on the context menu
A command window will open
Then type
UCC COMPRESS MAPNAME.RSM and press enter
you will then have mapname.rsm.uz compressed file and your done
Here are some examples
UCC COMPRESS MAPNAME_T.UTX
UCC COMPRESS MAPNAME_sm.USX
UCC COMPRESS MAPNAME.TPT
UCC COMPRESS MAPNAME.INI