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MW3 Downgrade and Update Prevention Guide

Scheduled Pinned Locked Moved MW3 Client Support
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  • SyncHole Offline
    SyncHole Offline
    SyncHole
    Contributor
    wrote last edited by
    #2

    DOWNLOADING DEPOTS HAS NO PROGRESS BAR. IT ALSO TAKES LONGER THAN STANDARD DOWNLOADS. WAIT FOR THE DEPOT DOWNLOAD COMPLETE MESSAGE TO APPEAR BEFORE CONTINUING.

    If you get a message stating something about ragdoll.cfg then you either didn't copy all the files over properly or you didn't wait for the downloads to complete.

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    2
    • Salivaboi Offline
      Salivaboi Offline
      Salivaboi
      wrote last edited by
      #3

      Life saver

      1 Reply Last reply
      1
      • Grubs.gg Grubs.gg referenced this topic
      • Delta_1453 Offline
        Delta_1453 Offline
        Delta_1453
        wrote last edited by
        #4
        This post is deleted!
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        • espresso8031 Offline
          espresso8031 Offline
          espresso8031
          wrote last edited by
          #5

          If anybody runs into some script errors in private mp matches like I did, using different manifests solved it for me

          download_depot 42680 42682 2661317971072643596 
          download_depot 42680 42683 1595601894688570808 
          download_depot 42680 42681 5651167211650965131 
          download_depot 42690 42691 4104640605720756125 
          

          please remember to clear your plutonium iw5 cache.

          All credit goes to discord users Fry and Raine! Hope this helps someone.

          SkUlLcRaCkErgd 5persondude 2 Replies Last reply
          3
          • blitzou Offline
            blitzou Offline
            blitzou
            wrote last edited by blitzou
            #6

            Life saver as well! Thanks for the detailed tutorial. Now facing the same problem like this ticket to launch on a private game : https://forum.plutonium.pw/topic/46474/anyone-able-to-assist-please

            Vipadus 1 Reply Last reply
            1
            • candy2 Offline
              candy2 Offline
              candy2
              wrote last edited by
              #7
              This post is deleted!
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              • blitzou blitzou referenced this topic
              • blitzou blitzou

                Life saver as well! Thanks for the detailed tutorial. Now facing the same problem like this ticket to launch on a private game : https://forum.plutonium.pw/topic/46474/anyone-able-to-assist-please

                Vipadus Offline
                Vipadus Offline
                Vipadus
                wrote last edited by
                #8

                blitzou Check the post by espresso8031 right above yours. I had the exact same error and all I did was uninstall MW3 and Plutonium, then redid the downgrade process except with those depot files.

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                • Grubs.gg Grubs.gg referenced this topic
                • Benson774 Offline
                  Benson774 Offline
                  Benson774
                  wrote last edited by
                  #9

                  was able to download the first two but not the third (42751)
                  Screenshot 2026-09-10 160637.png

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                  • Benson774 Offline
                    Benson774 Offline
                    Benson774
                    wrote last edited by
                    #10

                    update: Grok made me swap 42751 with 42750 and apparently it worked. then i followed the rest of the procedure and now i can play MW3 (it wouldn't run before the downgrade)
                    Screenshot 2026-09-10 162223.png

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                    • espresso8031 espresso8031

                      If anybody runs into some script errors in private mp matches like I did, using different manifests solved it for me

                      download_depot 42680 42682 2661317971072643596 
                      download_depot 42680 42683 1595601894688570808 
                      download_depot 42680 42681 5651167211650965131 
                      download_depot 42690 42691 4104640605720756125 
                      

                      please remember to clear your plutonium iw5 cache.

                      All credit goes to discord users Fry and Raine! Hope this helps someone.

                      SkUlLcRaCkErgd Offline
                      SkUlLcRaCkErgd Offline
                      SkUlLcRaCkErgd
                      wrote last edited by
                      #11

                      espresso8031 do I install these with the ones above or just the four in your comment?

                      1 Reply Last reply
                      0
                      • 5persondude Offline
                        5persondude Offline
                        5persondude
                        wrote last edited by
                        #12
                        This post is deleted!
                        1 Reply Last reply
                        0
                        • espresso8031 espresso8031

                          If anybody runs into some script errors in private mp matches like I did, using different manifests solved it for me

                          download_depot 42680 42682 2661317971072643596 
                          download_depot 42680 42683 1595601894688570808 
                          download_depot 42680 42681 5651167211650965131 
                          download_depot 42690 42691 4104640605720756125 
                          

                          please remember to clear your plutonium iw5 cache.

                          All credit goes to discord users Fry and Raine! Hope this helps someone.

                          5persondude Offline
                          5persondude Offline
                          5persondude
                          wrote last edited by
                          #13

                          espresso8031 Here are the DLCs for people that own them:

                          DLC1: download_depot 42690 42695 9005316271397236436
                          DLC2: download_depot 42690 42696 2478272765185873756
                          DLC3: download_depot 42690 42697 5810618727794750362
                          DLC4: download_depot 42690 42698 5997898371746217629
                          
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